Remington Rolling Block

This carbine is not a navy model, but it is a close representation.

Remington Rolling Block Carbine

50-70 cartridge for the RRB (RRB carbines actually used .50-45 cartridges)

Remington Rolling Block Carbine In Action In Korea

For a really great book on the Remington rolling block, find this one by George Layman; I believe you can get it at Dixie Gun Works: