My Patzcuaro Earrings

So I own the matching necklace to these earrings. According the seller of these earrings, these were made by the nephew of Mr. Jesus Cazares. Mr. Cazares, as you may recall, is the original maker of the fish necklaces based on a design by Miguel Covarrubias - how do I know this? Cuz its noted in the Davis & Pack Mexican Jewelry book. Of note, Mr. Cazares does not have a stamp or makers mark. No marks are described or shown in any of the books. Still, the flat fish design is distinctly Pazcuaro, Michoacan. I cant wait for Tere to see these! She will die!