You sure about that? Every one I can remember--Snider or Zulu----has the hinge on the right side. There are some that hinge on the left--the Russian Krnka is one.Bill, not only is the Tabatiëre a back action lock but the action itself opens from the opposite side as the Snider action.
Certainly possible. I've seen them with brass and steel breech blocks, and seen pictures of them with a really strange hammer. There were certainly some oddballs during the mid-late 1800's as practically every country tried to salvage something from huge stockpiles of front loaders by converting them to the new metallic cartridge. A "left hand" Tabatiere wouldn't be the strangest. What I'm familiar with is this--hinge on the lock side.I had one in the shop for a while, the action was bronze and iirc hinged from the left. Perhaps Bannerman bought them from other sources besides France?