Silver and onyx earrings with unknown mark

[fluxflux]

I have these silver and onyx earrings and I can't find out who the maker is. The makers mark is on the back of both of the earring but it was too fine to show up properly in the photos I took. I drew the mark using MS Paint. Any help will be appreciated.

[ValkyrieVixen]

It's WMCO for Wheeler Manufacturing

[fluxflux]

Thanks!