"Shell Design" Powder Flask

This is called a "Shell" design because of the clamshell pattern on the lower half of the flask body.
Patent (internal spring) screw-off top, 3-setting adjustable charger (unmarked).
Copper body (~6-1/2" x ~3-3/8" x ~1-1/4") without hanger ringlets; heavy brass top.

If you need further information, please post your questions to me directly via E-mail.