Help to identify wooden prop blade needed

Hello All,

I have seen half of a wooden 2 bladed prop. Unfortunately only half of the stampings are present on the boss. Could any Forum member tell me what aircraft this may have belong too? When complete it would have been a good ten feet across.

The stampings are as follows:

G1448

N.20

400 L

2699 RH

P.2330

And that all I can see, apart from several AID stamps. I imagine the really useful stuff is on the other (missing) half!

Any help or opinions, will be greatly received.

Kind regards, Malcolm.