Russian Empire, St Petersburg, 1847 – 1864, diamond earrings, unidentified mark

[novichok]

Hello!
I could not identify unusual mark nearby the town mark.
I would be glad to receive information about this mark.
Kind regards, Alex

[Goldstein]

Hi novichok -

Goldmark Russia (a little bit crippelt)
townmark: St.Petersburg
gold content mark: 56 zolotniki = 14 k = 585 Gold (58.33 %)

some examples:







Regards
Goldstein

[novichok]

My dear Mr Goldstein,
Thank you so much for your post.
The beetle is magnificent!
About marks.
On the earring the hallmark of St. Petersburg in 1818-1864 and gold content mark, which began to be applied since 1847.
I can’t identify the third brand and I hope only for a miracle.


Kind regards, Alex