Very nice configuration and workmanship. I once a Leech while in the UK. Took it to West Wycombe UK for a shoot near the Churchill grounds back then. The Churchill guys told me that Churchill had excessive Damascus barrels well into the late 20's and made best SLE for the trade. He mention the engraving was a clone of the Churchill Imperial but this looks like a 7 pin. Could well be an aggregated trade weapon

Norm