There is a great tool Admin added last year to help you on these searches. Next to the Search bar at the top of the page it has the word "Advanced". Click on that word and it takes you to this page - https://www.tcdb.com/AdvancedSearch.cfm
From that page select "Basketball" from the Category dropdown, put the card number and the player's name (I usually just use the last name unless it is a common name), hit search and your results will appear. In this case 8 cards appear (the base and 7 parallels) and only one of them is SN50.