I recently bought a '67 912 with 4.5" Fuchs alloy wheels. I removed them with the intent to sell them as their value is almost as much as the car. After I removed them I found that two of them had a 901 part number, 4.5Jx15 and the fox symbol on the inside. One had no Porsche part number, 4.5Jx15 and the fox symbol stamped near the center hole. The last wheel had no Porsche part number, no size number but does have a fox symbol near the center hole. Does anyone have an explanation? I'm pretty sure these wheels were not ordered with the car but likely installed later, but at least 30 years ago? Are they all legit '67S Fuchs alloys? I can't believe that 4.5" repro Fuchs were ever manufactured. Any ideas out there?