Concerning the value of collectable ceramic figurines?

I've unintentionally acquired fifty three Memories of Yesterday ceramic figurines. I want to sell them. After several hours of trying to determine what they're worth, I'm still having trouble. I noticed that some figurines, that are otherwise identical, have various stamped letters, and printed information on their undersides. I don't know what they signify. If anyone that's reading this can provide information or a useful suggestion, I'd appreciate it. 

John2020-07-16T15:43:11Z

Start here:https://www.ebay.com/b/Enesco-Memories-of-Yesterday-Collectibles/13792/bn_3011746
Antiques Roadshow banned Hummels and the like because collectors think they are actually worth something, and they are quite common.