Coming Unglued: The Importance of Reversibility in Artifact Conservation

By Reagan Andersen

In this month’s blog, we are highlighting a whiteware basin with a flow blue Scinde pattern from the mid-nineteenth century. The object was brought to the Dovetail lab by a curious owner from Stafford County.  The vessel had once been broken into several large pieces that someone had attempted to glue back together (Photo 1). With permission from the owner, the archaeology lab at Dovetail conserved the bowl in a more appropriate and safe manner. Through a step-by-step analysis, this blog will discuss the conservation methods utilized to preserve the bowl’s integrity.

Photo 1: The Basin Before Conservation Efforts Began. Notice the giant glob of glue put in place of a missing sherd!

The first step was to remove the adhesive that had been used to refit the bowl when it originally broke. In order to do this, we had to first determine what type of glue was used and how, or if, it could be removed. With its black color, we believed the adhesive to be JB Weld—a high-temperature epoxy adhesive that is not removable. In order to get a clearer answer, we took the bowl to the Virginia Department of Historic Resources (DHR) in Richmond and with the help of Katherine Ridgway, a conservator at DHR, we received great news. It was not JB Weld, but just a normal, removable, adhesive that had been painted over with either black paint or sharpie in an attempt to blend in with the dark blue pattern.  We quickly got to work removing the black paint and as much of the glue as possible with just cotton balls and acetone. However, the adhesive was not budging. The next step was to put the bowl into an acetone chamber, where the bowl is placed in a bag or container along with acetone-filled jars so that the acetone vapors can break down the adhesive and allow for separation (Photo 2). After a few weeks of being in the acetone chamber, the pieces had finally fallen apart and it was time to start removing the leftover residue and begin re-mending. In order to remove the excess residue we soaked the sherds in acetone and then used scalpels to peel the adhesive off of the fragments.

Photo 2: The Basin After Removal of Adhesive, But Before Acetone Chamber.

To re-mend the basin, we used Paraloid B-72: a clear, thermoplastic resin that is commonly used in conservation and restoration. It is more flexible than most other adhesives and, most importantly, it is dissolvable in acetone! It is highly important that whatever was done to the basin must be reversible; this is true with all conservation and restoration work. In the lab at Dovetail, we regularly use B-72 for labeling artifacts and mending ceramics or glass.

After several months of work, the bowl was finally finished (Photo 3). We hope to continue restoration by filling in the damaged, colorless areas with compatible paint colors. So, next time you break your grandmother’s favorite dinner plate, ask an archaeologist to repair it for you!

Photo 3: The Finished Basin.

 

 

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Signed, Sealed and Delivered

Featured Fragment – A Lead Cloth Seal from John Lee Pratt Park

By Dr. D. Brad Hatch

Bale Seal

Figure 1: John and Jeremiah Naylor Lead Cloth Seal Recovered from John Lee Pratt Park

In August 2016, Dovetail conducted archaeological excavations at John Lee Pratt Park on behalf of Stafford County. During these investigations, archaeologists uncovered and excavated a late-eighteenth-century trash pit likely associated with enslaved laborers on the Chatham plantation property. Although no longer officially associated with Chatham, the land on which John Lee Pratt Park is now located was once owned by William Fitzhugh of Chatham and likely served as an agricultural field and home to enslaved plantation laborers. Hundreds of artifacts were recovered from this trash pit that provide important information on the lives of the enslaved people during the early Fitzhugh ownership of Chatham. Among these artifacts was a lead cloth, or bale, seal (Figure 1).

These lead seals were attached to bolts of cloth starting in the Middle Ages, and perhaps as early as the Roman period, to indicate the quality of textiles (Endrei and Egan 1982:47; Noël Hume 1991:269–271). Generally, archaeologists in the new world have identified two types of lead cloth seals. One type of seal that consisted of four sections attached by lead strips was often used to indicate the payment of excise duties (Noël Hume 1991:269). The other, more common, type of lead seal consisted of a round loop and lug attached by a small lead strip. When used, the lugs on the seals were clamped over the loops using a tool that could impress marks into the lead. These two-part seals could have been used to indicate the payment of excise duties, but also often carried the marks of the cloth merchants.

Figure 2

Figure 2: 1761 Joseph Vernet Painting of Loading Cloth and Other Goods for Shipment

The cloth seal recovered from the trash pit at John Lee Pratt Park is of the two-part variety, bearing the mark of cloth merchants from England. Although worn and fragmented, this cloth seal was complete enough to decipher the phrase “John and Jeremiah Naylor & Co. Wakefield,” along the loop portion. Additionally, the lug of the seal was marked with a sailing ship. John and Jeremiah Naylor were cloth merchants from Wakefield in West Yorkshire, England (Figure 2). This part of England was a major cloth producing area in the eighteenth century, and the Naylors were in operation from 1775 to 1829 (Daniels 1980:106–109). Other artifacts recovered from the trash pit suggest that this cloth seal likely dates from the first 25 years of the Naylor’s textile business.

The presence of this artifact in a trash pit associated with enslaved plantation laborers at Chatham helps to reveal the degree of access to consumer goods available to enslaved people in eighteenth-century Stafford County and the choices they made in selecting those goods. While goods, such as cloth, could have been handed down or pilfered from the manor house, it is much more likely that they were purchased by the enslaved people living at this site, perhaps from stores in nearby Fredericksburg or Falmouth. One of these stores could have been the one owned by William Allason in Falmouth, whose store ledgers indicate that he sold goods to enslaved members of the community (Martin 2008:191; Thompson 1931). Allason’s store was in operation from 1760 until the 1770s and could have been the source of the cloth represented by the lead seal.

Figure 3

Figure 3: 1853 Sketch by Lewis Miller of a Slave Dance in Lynchburg, Virginia. The blue cloth shawl and other adornment items worn by the women in this image were likely purchased from a local store.

Enslaved consumption from local stores during the late-eighteenth century was not uncommon in Virginia and much research has been conducted on enslaved consumption patterns and preferences from both archaeological and historical perspectives (Breen 2013; Heath 2004; Galle 2006; Martin 2008:173–193). Some of the most popular items purchased by enslaved people included alcohol, sweeteners, textiles, and various household goods (Heath 2004) (Figure 3). Other artifacts from the trash pit, including a wine glass stem and a fashionable creamware plate (see November 2016 post), indicate that the enslaved people at Chatham had access to these types of fashionable goods and actively sought them out. The consumer engagement among the enslaved at Chatham provided them with a more active role in shaping their material lives and identities, in addition to broadening their social networks, despite their segregation and isolation on farm quarters. These often unassuming objects excavated from enslaved contexts, like the cloth seal at John Lee Pratt Park, are able to tell the stories of everyday resistance and persistence despite the horrors and oppression of slavery.

 

 

 

 

Any distributions of blog content, including text or images, should reference this blog in full citation. Data contained herein is the property of Dovetail Cultural Resource Group and its affiliates.

References:
Breen, Eleanor E.
2013    The Revolution before the Revolution?: A Material Culture Approach to Consumerism at George Washington’s Mount Vernon, VA. Ph.D. Dissertation, Department of Anthropology. The University of Tennessee, Knoxville.

Daniels, Stephen John
1980    Moral Order and the Industrial Environment in the Woolen Textile Districts of West Yorkshire, 1780–1800. PhD Dissertation. University College of London, London, England.

Endrei, Walter, and Geoff Egan
1982    The Sealing of Cloth in Europe, with Special Reference to the English Evidence. Textile History 13(1):47–75.

Galle, Jillian E.
2006    Strategic Consumption: Archaeological Evidence for Costly Signaling among Enslaved Men and Women in the Eighteenth-Century Chesapeake. Ph.D. Dissertation, Department of Anthropology. University of Virginia, Charlottesville.

Heath, Barbara J.
2004    Engendering Choice: Slavery and Consumerism in Central Virginia. In Engendering African American Archaeology: A Southern Perspective, edited by Jillian E. Galle and Amy L. Young, pp. 19–38. University of Tennessee Press, Knoxville.

Martin, Ann Smart
2008    Buying into the World of Goods: Early Consumers in Backcountry Virginia. The Johns Hopkins University Press, Baltimore, Maryland.

Noël Hume, Ivor
1991    A Guide to Artifacts of Colonial America. Reprinted from 1969. Vintage Books, New York.

Thompson, Edith E. B.
1931    A Scottish Merchant in Falmouth in the Eighteenth Century. Virginia Magazine of History and Biography 39(2):108–117.

History Well-Preserved

Featured Fragment – Nineteenth-Century Pickle Bottles

By Kerry González 

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Gothic Revival style shown in the design of the pickle bottle

Recent excavations by Dovetail, conducted on behalf of Stafford County, recovered two cathedral-style pickle bottles (displayed below). They were located within two separate trash pits at a Civil War-era encampment in the town of Falmouth in Stafford County, occupied between 1862 and 1863. The area is now part of Pratt Park.

Bottles such as these were often used to hold foods that had been preserved through drying, smoking, pickling, etc. (Society for Historical Archaeology [SHA] 2016). This process, developed by M. Nicolas Appert, began during the Napoleonic War era as a means to help the military store foods for longer periods of time (SHA 2016). Appert’s process, formalized in 1809, began with direct heat which killed the bacteria in the food. This was followed up by the installation of an airtight seal over the mouth of the vessel to avoid additional contamination. Oddly, scientists of the time, Appert included, did not fully understand how or why the process of heating and sealing of a container preserved perishables for long periods of time; they just knew it worked (SHA 2016).

The ornate pint-sized bottles shown here exhibit a wide mouth, which allowed for bulky and large foods, such as pickles, to be packed and removed easily. The design of the bottle features beautiful elongated cathedral windows; it is a reflection of the Gothic Revival style en vogue during the mid-nineteenth century in America (SHA 2016). This revival not only affected the style of bottles of the time but architecture as well. Houses reflective of Gothic Revival style often feature steeply pitched roofs with a central cross gable lined with decorated vergeboards (ornate trimwork lining the roof eaves), a one-story entry or full-width porch, and windows with Gothic detailing, including drip molds, pointed arch (lancet), or false shaping (McAlester 2013 267–268). Clearly it was a popular motif and one that extended to even the most seemingly ordinary of objects—the humble pickle jar.

picklebottlepicklebottle2_reverse

 

 

Any distributions of blog content, including text or images, should reference this blog in full citation. Data contained herein is the property of Dovetail Cultural Resource Group and its affiliates.

References:

Society for Historical Archaeology
2016 Society for Historical Archaeology Historic Glass Bottle Identification & Information Website. https://sha.org/bottle/index.htm, accessed September 2016.

McAlester,Virginia Salvage
2013 A Field Guide to American Houses. Alfred A.Knopf, New York, New York.