I did acquire the Geco DSM. After seeing it it does have numerous issues. It appears to be a
'b" prefix, though poorly struck. The rifle has been sporterized including new stock, site removal and front site replacement and the addition of scope mounting plate added to the left side. The bolt does match, however missing the safety.
Not sure at this point what I will do with it, may sell intact or part it out, last thing I need is another restoration in my life.
A couple of pics.
Jeff