Propeller identification DRG 200 ER, SER R1030

[Glenn]

My branch of the Royal Canadian Legion has been given a propeller of unknown origin.
It's almost two metres long, straight, light coloured wood, , and has on one side of the centre spindle DRG 200 ER, and on the other side SER R1030
There are no decals or other identifiers.

I am hoping to find out any information on the thing.

[Mtskull]

DRG 200 ER is most likely the drawing, or design number; SER R1030 the serial number of the individual propeller.
Unfortunately that drawing number doesn’t appear on any listing that I have access to. An accurate measurement of the diameter and some clear photos showing the entire prop, also close ups of the hub might help, though.