For those interested (and there won't be many of you!) we've started a new
Wooden Propeller Forum to field questions about wooden propellers in general, with a category dedicated to "Early" propellers, including WW1. There is so little published information available, particularly with respect to propeller identification, that I thought it would be best to address questions I get at my web site (see below) in an open format instead of by email, with an invitation for everyone to participate.
If you have a propeller that can't be identified, it's always worth a shot, and there is a little tutorial about how to get photos included in the thread.
(Thanks to Scott for his permission to post this here.)