1972 Comspec
Country of origin: United States
Size: 2-1/4" x 3-1/2"
This set consists of 36 cards printed on very thin paper stock, notably using the same player photos as the 1972 Topps set. California-based Comspec, Inc didn’t make it very long in the industry however, as this was their only set of Basketball cards ever produced.
Additional resources: Checklist + more info