What are these brake drums off?

I have a pair of 4 stud front drums, but I cannot remember what they are off. The bearing outside diameters appear to be :-

Inner 50.292mm
Outer 39.878mm

Anyone know?

72 1300 I think or earlier

Thanks Dave. So are they from a ball-joint, drum-brake 1300 Beetle ?

yeah should be do u have a pic of the drums

Gave Botophucket the chop, so no pic. It would even be hard to put together 1000 words...they're just 9" front drums. A big hole in the middle where the stub-axle goes through, and 4 x 14mmx1.5mm threaded holes. Mainly need to know what the bearing sizes are.

I'm thinking of using them on another car - which currently has 8" drums - to improve the braking.

Hi Greg

They came from this sort of Beetle, I'm pretty sure that they use the same wheel bearings as a disc brake Beetle of the same model.

Steve