Please help us to evaluate, please.

[Вильгельмина]

Dear experts!
The theme is not mine, therefore I humbly beg you to help with the assessment of the subject.
In the fifties, this item was purchased at a European auction, was kept in the family, now I want to determine the price (will save whether selling things "father of Russian democracy", or should not squander accumulated not by me)?
So descriptive. Cuff links. Gold, red enamel, silver lining, diamonds. Carton with inner side has an inscription F. A. Lore, Kuznetsk bridge No. 4, Moscow.Mark 56 and FS ("but" , if not "C") "mirror". Cannot be determined with any assay master, nor with the price of the product. I would like to hear the opinion of professionals, and not to draw information from questionable sources. Thank you in advance!