Help! - Wooden prop - any info?

I have a wooden prop, which has been in my family for many years. I know
very little about it. Can anyone help?

It has the following information on it :

Admiralty Design (Transfer)

TREPACO
Trevor Page & Co Ltd (Transfer)
Norwich Eng

The following info is all stamped in the wood.

448 (Suspect this is a serial number)
AD545RH
D2520
P1580
90HPCURTIS

Two stampings which say AOP & ADP (Not very clear)

99.5 inch x 3.75 inch thick, blade approx 9.5inch max width
Central boss 7.75 inch diameter

Weight 20lb

6 holes for bolts, central hole approx 2.625 inch


I'd love to know what aircraft it may be from, and whether the family info
that it dates from the 2nd World War is correct, and what sort of value it
has. It seems to be in pretty good condition.

Thanks in advance.

LB