43 inch prop stamped "BOCKLACE"

[bpritch]

I just bought a prop from an antique shop. It's a 43 inch wooden propeller (no metal). There are 6 holes. The only markings are a green paint/stamp/stencil in block letters that says "BOCKLACE."
Some other possibilities are:
BOOKLACE
BOOKLAGE
BOCKLACE
BOCKLAGE

Can anyone tell me anything about this propeller?

[MWP_Lamar]

A prop that small is either not an aircraft prop or perhaps it's for an ultra-light of relatively recent manufacture. Can you post a picture?

Lamar