1961-62 saw only one release, from Fleer. Fleer was my favorite company for basketball cards, and this was the first issue under the Fleer banner- the next would not come until the legendary 86-87 set. For some reason, the 61-62 Fleer set was always harder to find for me than the 57-58 Topps set, I have less of them by nearly half, even the vintage dealer I knew in the mid-2000s wasn't able to supply me with many of them. Even when going to card shows, back when they used to have them, I would see other vintage cards outside my price range far more often than I would see 61-62 Fleers outside my price range, let alone in it.
The set design was re-used by Fleer on several occasions.