Re: Picatinny Rail By Norman E. Johnson
That is a Mosin Nagant receiver.
The $30 ATI scope mount for that in 2009 was anodized and the holes and countersinks did not meet 10-32 cap screw specifications, due, I think, to anodize build up.
The 2011 ATI mount is a much thinner flatter looking coating that meets spec.
The mounts in the picture that I made took too many man hours, and I have not worked on it in a while. I will probably put a VZ59 barrel on it next month, and then maybe some Aluminum black from brownells.