Luftwaffe Propeller Query

[horatio]

Hoping somebody can answer some queries I have in relation to what identification markings (if any) were recorded on Luftwaffe propeller blades. I’m in interested to know if there was a standard method of assigning markings to German military props. As a supposed example there is a laminated wooden blade available to the market (allegedly by repute a Luftwaffe WWII blade) with the following stencilled markings:

9-30308.11
W Nr 31949 0/2

Does anybody know what these numerals signify and whether this can lead to original airframe or aircraft type matching or indeed if such numbers are compatible with any propeller identification system used by the German military in WWII? Were post war identification markings of the same format?

“Googling” the 9-30308.11 number records other individuals querying this propeller number (Luftwaffe-bullet-board.com) in the past with the only lead being possibly a VS11 paddle blade for a JU87 Stuka.

Would any “boss” if present have corresponding markings (and indeed additional ones such as manufacturer)?

Apologies if these are obvious questions to the very well informed readers of this forum but I’m keen to start learning about Luftwaffe props and thought specialist internet forums a good place to start.

Thank you