Flottorp B935 - any idea what plane used this?

[Harkish]

HI... my dad, a pilot in WWII (trained in Stearman, flew P-51s) passed down a couple of wooden props when he left. I am trying to figure out what this one was for - it is a Flottorp with B935 stamped on it. Any clues? See pics? I've got it in my office and everyone asks what it's from - and I have no idea!!! Help pls.

[Mtskull]

To positively identify it would require the design number (B935 doesn’t appear to correspond with the Flottorp design number, so it is probably a serial number or batch number).
There’s a clue in that it is a left handed propeller. If you could provide the measurement from tip to tip, it should be possible to at least narrow down the possibilities.