reading this jogged my memory:
I happen to have a set of spare parts - looks like the complete lock without triggers - JP Sauer & Sohn numbered B1865 on hammers.
Hammers are the heavy type as in photos on the other thread shown above but have the firing pins attached, like on an old type revolver hammer.
Photobucket doesn't work for me anymore - if someone could post a photo for me here, pls send an email address and I'll send it.
If someone is interested, pm me
or perhaps I should put the stuff on ebay
didn't even remember I had them until now.
Gunter, England
Life Member NRA(US) 1974