I bought a small one at a hardware store when this came up. Works very well. I have sets complete in both glow and non-glow without the dark logo and have most of the dark logo in both as well.
By the way, the 1991 Bowman also has the glow and non-glow backs. In this set though, the cards that have gold foil stamping ont he front are only in the glowback variety. These include the Carew subset, the MVP, RB, and Silver Slugger cards.
Bruno
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Check my Profile page to see my 2023 Goals and my Lists of sets near completion (5 cards or less) or sets getting close (less than 100 cards missing and 75% complete).
https://www.tcdb.com/Forum.cfm/Page/B/ID/0/?MODE=VIEW&ThreadID=25745&C=0