Vintage Happy Frog necklace

This oversized frog necklace is so much fun! Great detail with jointed mouth and dangling circle eyes. The back looks almost like the front. ▪️ Pendant measures approx. 2 1/2" H x 2" W ▪️ 24” total chain length ▪️ Vintage from the 70's I tried to research this piece and found the same frog but with different eyes and it was thought to be a Madeira brand, but it isn't marked.