Authenticating 19th century baseball cabinet cards

[Detroit58]

The reason I need the images/cabinets slabbed is because the auction houses tell me they need to be slabbed to sell. The common response I get from auction houses presently: 1. We want to get these slabbed at your cost before we sell them. If I bother to ask if the listing is contingent on the encapsulation, they never include that answer in their response. What happens is they stop responding when they realize the graders don’t authenticate or they go ahead and sell it unslabbed under a very vague listing that is doomed to fail. Sometimes they just send it back. 2. Prove it. I thought that is part of why the auctions are taking money as a third party. Is that unprofessional or what? 3. The latest greatest from the wonderful auction houses-We will not confirm or deny it is said player. One of the auction houses told me “don’t show me nothing unless they’re in a uniform.” I apologized to him and sent him a scan of a Bruce Petway snapshot in Detroit Stars uniform with his catchers glove doing pre game warm ups. He hasn’t responded to me since. The reason I want to sell 19th century cabinets is that I am an aging man with a young family. My wife was born a war refugee and is a cancer survivor. Trying to provide my family a better life is the least I can do. If slabbing is worthless, what’s my move eBay? What’s a Gilbert & Bacon Jim O’Rourke worth? I don’t understand with all the money in baseball, how is eBay the move?