I believe your Manurhin PP may be one of the early post war ones. The Manurhin logo changed within the first year of manufacture, and I'm pretty sure your's is the early one. Here's a picture of the billboard on mine for comparison, made within the first 20,000 in 1954.
Has the Luger been proofed post-war? I can't make out enough detail in the markings on the right of the receiver.
__________________
 Igitur si vis pacem, para bellum -
- Therefore if you want peace, prepare for war.
|