vintage sterling silver circus animal theme pin lion, seal, horse acts

Description

This vintage pin feature circus acts
seal with a ball, lion on a stand, and a skirted girl standing horse back rider
on the back it is pressed "sterling"
2 1/4 inches long
good condition, history unknown- I acquired it about 20 years ago at an antique sale in California.
I have never seen another, quite rare collectible for all the circus fans.