Up until 1994 I collected any Topps baseball card or set listed in the SCD Standard Catalog of Baseball cards. That included the 3 Topps Debut sets issued from 1990 to 1992. These sets featured the debut date of rookies from 1989 to 1991. The 1990 set ( 1989 Debuts) was 150 cards and two CLs. The 91 set was 169 cards and 2 CLs, and the 92 set was 192 cards and 2 CLs. All of the sets sell cheap on ebay
But I picked up this item....whatever it is, after reading the note below on a Blog discussing 1990 oddities. The scans show the front and back of the one I picked up
This is the 2nd year set, 1991 ( 1990 Debuts)
