Had "won" this card several weeks ago, but the seller showed single card fronts and a scan with multiple backs in the auction. Even after an email exchange, I "won" and received the wrong card. After a couple more emails, and a return of the one with no stamp, this one arrived today ...
With it was a post it note, stuck to the sleeve, saying he had found three more Howe-stamped cards in his inventory. I've again contacted him, in hopes we can avoid the whole auction scenario, and just get those three back as a group with the others. Time will tell.
Thanks to everyone on the board who has an eye out for these.