[RRRacing1970]

Oh yes there is... (i posted the images. there are no legible stampings. all the stampings are numbers and don't appear to have any significant meaning)... Ak951... may be correct they may be iForged Seneka wheels... they sold new for about $850.00 + each. These look to be about 10 - 12 years or more old.
On the markings on the front wheels 8x18 are ET's 52
On the markings on the rears wheels 8x10 are ET's 58
Tht's why they will almost fit the late model 944' ALL 1987 & up years = S2 and 968's almost perfect!
Ron...
PS: If had the cash right now I would buy these in a NY Heart Beat!!!! Thanks for posting the hub pic's!