Gold Earring Hallmark Help

[jason4kstate]

Found this pair of earrings on Saturday. They weigh over 3 grams and are 14K. I believe the circle hallmark says HMO but it's kind of hard to tell. The black on the earrings appears to be paint or enamel. Any help would be appreciated

 

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[SCpicker]

NGA HMR? National gallery of art. Heritage museum replica. Are you sure it's 14k?

 

[2Minnesota]

My opinion is they are not solid gold. If you look at your close-up with the hallmarks you can see a line a millimeter or two up the post where the plating ends.

 

[jason4kstate]

I'm pretty sure its 14K. The posts are signed 585 with a DE or LE hallmark. I guess the posts could just be 14K. Its definitely not plated though. The dark spot on it is just some dirt/crud that I didn't have time to clean up.