Help in identifying a propeller blade

[Rainbow18]

HI guys, I need hepl to identify a propeller blade.
I have find this blade in a spain flea market.
Following, some fotos to help.

Thanks a lot for your help.

 

[Wurger]

A post-war blade rather. Judging by the markings on the blade prop front it was a part of three-blade prop. The serial seems to be the ED2573. But the inscriptions could be fake.

Is there any other data stamped on the blade root? What are the dimensions of the blade, length , width etc ?

 

[Rainbow18]

A post-war blade rather. Judging by the markings on the blade prop front it was a part of three-blade prop. The serial seems to be the ED2573. But the inscriptions could be fake.

Is there any other data stamped on the blade root? What are the dimensions of the blade, length , width etc ?

Thanks Wurger
length 120cm
width 19cm

other data stamped on the blade root : N18047

 

[Wurger]

OK. THX. The RA25756-1 and the white disk indicate the Rotol metal prop blade. It seems that the EXP means the experimantal/prototype blade.

The "Q SET 0°-20' COARSE" means that the blade was set different from normal setting in order to obtain the aerodynamic balance.