I'm a big fan of sculptural whistles, and think this is a pretty great one. Handmade in Oaxaca, Mexico of black clay it features incised details for eyes, scales, fins, and a sort of a sun pattern at the center of each side. And it makes a great whistle by blowing into the large hole on its side near the tail, with the hole at the end of the fin functioning as a modifier for the pitch.
7" long x 4" wide x 2 1/2" tall and in great vintage condition.