Identify a marking on a squash blossom

Hi, I’ve seen this squirrel mark before (almost looks like a squirrel or a snail) and it’s stamped sterling below the image. Can anyone tell me which Navajo silversmith artist this belongs to? I was told this necklace was from the 80s but just wanted to check. DSC03947|690x388

Yes, the hosting company did some cleanup and lost some images. If you could please upload again. thank you.