Identity of GMAD48 Wooden Propeller

[vicky9063]

Hi,
My father would very much like to find out where his wooden propeller it comes from. He has told me its details:
overall length - 1885mm /6' 2 3/8"
number of holes in hub - 6
overall hub diameter - 171.45mm / 6 3/4"
Inner hub hole diameter - 60.33mm / 2 3/8"
Hub bolt hole diameter - 11.11mm / 7/16"

Inscription on the hub is: GMAD48
My father thinks that it comes from a Gypsy Major aeroplane. Could anyone identify this propeller??
Thanks
vicky

[Dave]

I don't have a reference to that design number. Is it a left hand rotation? I think most of the Gypsy props were left hand. Some examples of similar props are seen at http://www.warbirdsite.com/museumprops.html.

[vicky9063]

Hi Dave,
I have just spoken to him and he says yes it is left hand. I will get him to take a photo of it to show you. Do you have any idea of how much these propellers are worth?
Cheers
vicky

[Dave]

It's hard to estimate its value without knowing what it was used for and what kind of condition it's in, but I've seen most Gypsy-like props in good or excellent condition sell on eBay for anywhere from about $400 to almost $1000. It's an unpredictable market.

In fact here's a similar one that just recently sold on eBay.