when I type in the SN it just says 51 or later (Sn in the low 600 K range). Looking inside the action it does have the brass spool in the rotary magazine instead of the later aluminum version, and it just says model 99, no letter after the 99.
Looks like I need to go talk to the insurance agent. I don't have any extra coverage on the firearms. (never really considered that they might be worth something, I just thought they were fun to shoot.)
Between the model 99, the Rock-Ola carbine and the old wingmaster, I may be in a little bit of trouble. Oh, and people keep telling me the win 69A might be worth something too. Crap, the insurance might break me!