1972 Panini Cantanti 72 #224 featuring Steppenwolf, graded PSA 7 by Professional Sports Authenticator. This Panini issue from 1972 is part of the Cantanti 72 set and identifies Steppenwolf on card number 224. The PSA-graded example has a population of 1, with 4 higher in the census, which gives collectors a clear point of reference for this specific card in the set.