G.B. Lewis Proppeller identification

[Chapstikk]

I have a G.B. Lewis wooden prop that I would like more information about/ would like to sell.
Serial # 7833
Des. L11b-42
G.B. Lewis
http://imgur.com/a/JALWo

Any and all assistance would be greatly appreciated

[Dave]

It's almost certainly one of the models listed under L 11BK - 42 on this page. Just ignore the "K".