Have very unique german powder gun from long ago, barrel measures 15 1'2 inchs long and is expanded on the end much like a blunderbuss but not as  pronouned as some of the others. Has unique patchbox and quite a few issues with chips on the stock,  Measures 30 inches long, Was convertd to percussion long ago, these were often used on sailing ships because of there short length. I think its about 58 or maybe a bit longer. Pics do not do it justice.