Dear Gregory,

This is cute, this Hummel figurine is called Valentine Joy #339. It was a special edition which was only released for one year, 1979 and was only available to members of the Collector's Club (clearly she was a member as I've noticed she has a couple of Club pieces in her collection). There is a companion piece to this one which was released a little earlier and called, Valentine Gift #387, this was also a Club Exclusive and therefore I'd expect it is in your Mom's collection somewhere.

Each sell best via EBay and I'd recommend selling them individually, done in that manner you could expect $15USD - $20USD each.

Sincerely,

Erin-Marie