Finnish capture Mosin Nagant

1937 Mosin nagant Finnish capture  

marked with two ‘SA’ marks and single ‘D’

The ‘D’ marks that it has been re-crowned for Finnish D166 ‘heavy ball’ cartridge; a very similar round to the original Russian 7.62x54R, I have not fired it but I’m told the Russian cartridge will work as well as the Finnish. 

$750 obo or trade for a Flintlock shotgun/rifle, a SxS 12 gauge or a lever action 

Thanks