I would say this is the “first” pink ribbon clasp! It is from the 1930’s. Of course this did not symbolize breast cancer like it does now. I have never seen one of these before from that era. Overall size is 2” x 1 ¾” approximately with no maker’s mark. It has a bit of wear but is still in good wearing condition.
Jewelry Treasures From The Past
When you buy vintage you are buying classic memories!