Y1068 Patented .54 Hunt and Jennings Self Propelled "Rocket Ball" Cartridge (Patent#5,701 / August 10, 1848)
Description: Here is a minty and hard to find cartridge. Normally the bases on these are swollen. As you can see, this one is excellent condition. This cartridge was patented by Walter Hunt in 1848. The powder is encapsulated behind the cork on the base. This variant doesn't have the patent date on the side and there are a few different length varieties that were produced.
Measures: D .557" L .972"
Reference: RBTRF Vol. 3 No. 1045/1046