After searching this website without success, any input from the steering wheel police would be greatly appreciated.

The accessory book for the 1967 model year 911 lists the wood steering wheel as part number 901.347.082.01, accessory number 9265. Where was the part number stamped on the original steering wheels?

I see many purportedly original steering wheels advertised apparently without a stamped part number, or at most either a 4 digit or 2 digit number. Are those steering wheels actually reproductions?

Also, were the original steering wheels all stamped with "VDM" in a triangle?

Thoroughly baffled.

Thanks for any help.