Leaves on back of clip on earrings, possibly maker's mark?

This pair of earrings has leaf marks on the back. Does anyone recognize this?

 

Sorry, no.
Time period 1970s give or take a few years.

 

Thanks

 

Can these be moon glow lucite? They have a very pretty pearlish? kind of shimmer to them.

 

Not moon glow. I don't think they are lucite either.

I wear some of these from time to time.
I think they are just plastic.

 

I took some more pictures to try to capture the shimmer.

 

Kind of look like these but they are flat not round. https://www.etsy.com/listing/673346...eads-11mm-pkg10?ref=pla_similar_listing_top-2

 

Not the same.