Greetings, Mike! The number, 19481, is an order number. This was not uncommon at one time. Wow, a '6' frame! That is a stout gun. My 1879 Lifter 10 gauge is built on a '3' frame and I thought it was heavy! Is the number '6' stamped in the bottom of the rear barrel lug? Others will join in here with sources of screws and more detailed information. I am having Brad Bachelder make some hammer screws for me using originals for duplication. Cheers!
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GMC(SW)-USN, Retired
'Earnest Will'
'Desert Shield'
'Desert Storm'
'Southern Watch'
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