One of the distinguishing features of the American longrifle is the brass patchbox. This two-disc DVD set takes you through the entire process of designing and fabricating your own brass patchbox. The metal patchbox may have seen its debut in the Colonies as early as 1730, but its common use really began a few years prior to the Revolution. Just exactly where, when or who invented it is unknown, but there were plenty of door and metal hinges around waiting for that spark of genius.