Mark on antique gold coral pin/brooch

[Phate008]

Anyone ever see this mark before? Any idea on maker? Thanks for any help.

It looks like a barbell / dumbell to me, but maybe its letters? C C backwards, or O-O, C-O

[dognose]

Hi,

See Day, Clark & Co. here: Information Regarding Day, Clark & Company

Trev.

[Phate008]

Wow that was fast. Thanks so much for the help. A very interesting company