ID for Sensenich prop

[jablase]

I recently inherited a prop that had been sanded down to bare wood. The identification is still mostly visible, but not complete enough for me to readily ID it. The data I have along the blade is A3207 and DES.72 something (either "C" or "G") -50. Along the hub is the marking 4207A and 50.

Can anyone make sense of this for me? I looked at the identification reference and find 72GK-50, but not just 72G-50 or 72C-50. Are any of the other numbers helpful or meaningful?

[Dave]

That "K" in the hub designation seems to be included in some other models as well, but I'm not sure what it signifies. I think for purposes of establishing history of past use, as a display propeller, it can probably just be ignored.

[MWP_Lamar]

From a Sensenich spec sheet dated 1946, "The second letter (if any) indicates hub dimensions for a particular hub".

This may apply to some other manufacturers too as some seem to follow Sensenich's design numbering schema.

Lamar