My Dad worked for Topps when they were in Brooklyn. It was typical for employees to take home an uncut sheet of cards, mostly if they were heading for scrap due to a production error, but sometimes they were flawless. Not just baseball, but other franchises that Topps had contracts with. My brother was king of the neighborhood because he could get kids cards they needed for their collections. And yes, my mother tossed out any remaining card sheets we had when we moved out to Long Island because by then my brother was in HS and didn’t care, and I hadn’t yet caught the baseball bug. But I’m sure a lot of Topps moms did the same.