Come in number 1655 your time is up

1654 cards online.  Names given for each of the artists of those 1654 cards on the website.  1654 cards on the scrolling display in the room with the tills.

BUT there was a 1655th  card tucked away in a little corner with 4 other cards.  It’s to be assumed this was the “late arrivals board” and the card shared its little space with two Richard malone cards, a sadie Hennessy and a Celia Hempton.  Illustrious company indeed.  So who did it?  And who bought it?  Can you solve this mystery?