I am having a time giving me directions and costs of a historical letter which would presumably when and where the pistol was sold. There are more than one procedure described on this site, and another link directs you to www.swhf.org which seems to be dead.

Can anybody give me the correct link?

I volunteered to have a pistol papered to find out once and for all what the "N.P.D." on those third-generation pistols means.

Thanks.