i have said this before- "real" and "fake" Cobra R's are the same wheel. they are made on the same assembly line, out of the same materials, to the same specs. the only difference is the centercaps and the box they come it. the same company makes ALL OF THEM.
with that said, i think CobraXP has some of the older CobraR's. i have a friend with some R replicas on his 96 Cobra, and they have that number stamp on them. mine are also replicas, and dont have the # stamps. his are about 6 years old, mine are about 1.5 yrs. old.