Figure 4 Distilling flask, London, 1600–1610. Unglazed earthenware. H. 15". (Courtesy, Association for the Preservation of Virginia Antiquities; photo, Gavin Ashworth.) The mended flask as seen in fig 3. One of a number of London coarsewares that have been recovered from James Fort’s earliest contexts. Distilling flasks are frequently found in London contexts dating to the sixteenth and seventeenth centuries. Most often associated with metal-working sites, these flasks are believed to be cucurbits, or the bottom elements of stills.