Yes indeed it means something! Your PPK is a party leader RZM and manufactured in 1934 before the party leader went with the swastika & eagle on the grips. An RZM in good condition could bring over 2 grand if not more. On the other hand a party leader with real grips & not fake would be over 6. I have one of the first ones sn#804xxx and holster to match & I would not take over 3 for mine. Post a pic if you can?
Hope this info helps ya?