Justin, I just got off the phone to Terry and he says that looking at the photos I sent him, there are 2 sets of numbers on the water table, 8446 and 6958. He says that one number is in his Brown book as Ford dates 1902 and the other number Ford dates 1907 There are 2 sets of view marks on the water table,, one from pre 1904 and the other set post 1904. The BV under a crown on the right side slightly overmarks the 6958 serial number, meaning that 6958 is probably earlier than the other number 8446. The barrel flats show post 1904 but pre 1925 proof marks for 12 bore 1 1/2 cartridges.
Our premise is that this gun is likely a Ford and was rebarreled by the maker in 1907. I'm keeping it! Sincere thanks to Terry.
Mike