Join Date: Jul 2010
Location: St. Louis, MO area.
That last pic from the Met you posted.........
Notice the one pouch to carry lead balls. This makes sense. That's why I think the container with the flexable, leather neck may have been designed to carry smaller bird-type shot. Sort of a crude variation of a European leather shot flask. The leather neck would help center the flow of the tiny shot into the barrel or hand for loading. Just my guess.
In any case, I believe your set is probably from the same location as the other pics posted here.