File:Post Medieval powder flask cap (top, profile and base) (FindID 118545).jpg

English: The object is probably a cast lead or lead alloy cap from a powder holder. It is cylindrical with a sealed terminal. In plan it is sub-circular due to damage, but was originally circular. The walls of the object taper slightly towards the cap. On the exterior the lower, open ridge is decorated with a horizontal ridge. On the upper edge, on either side is a small, integral loop. The loops appear to have originally been lugs whose holes were punched through later. The surface of the cap is a powdery cream colour. It measures 19.09mm tall, 28.83mm wide from lug to lug and the thickness is 20.87mm. It weighs 18g. The powder cap is a common find from Civil War sites. They formed the cap to the powder holder or flask which contained enough gunpowder for a single round. The caps were suspended from a bandolier by cord, and the flask was then pulled away from the cap when it needed. The cap probably dates to the mid 17th century (Courtney, P. 1988 ‘Small Arms Accessories of the mid Seventeenth Century’ Finds Research Group Datasheet 11)