That's what I'm thinking. Old pp block Imperial bolt someone bent.Gew 98 bolt that has been turned down? Maybe an Imperial eagle on the bolt root.
Wow. Those are s's?6110 ss in sutterlin from this who used sutterlin font should be destined the maker.
Ah yeah, I should have recognized Sütterlin even though I can't read it very well.Yes this is a sutterlin font, not normal hand written. The bolt with RC stamp should be imperial. Similar letters were used probably on parts delivered to J.P.Sauer production in 1934/5. You will see same letter on bolt handle base of S/147K rifle.
K98k Mauser Service Rifle - Pre98 Antiques
This is a very early 1934 production J.P. Sauer Made S/147/K code K98k Mauser Service Rifle.pre98.com