Fuchs 9 x 15 Identification

[74USCarrera]

I got 2 x Fuchs 9x15 and 2 x 8x15 wheels and trying to decipher the date codes on the wheels.

Here is the pic. Can anyone give me a good guess on the date code please?

I think Im seeing 3/71, but on one wheel it appears to be two 3's (almost on top of each other) followed by 71. The car they came from was a 72 that was immediately converted to an ST clone in late 71 by original owner (with factory ST flares and engine built to 2.55 liters). Just not sure these markings are very clear, even though they are believed the be the wheels put on the car when the ST flares were installed in late 71.

Thanks