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Hi!

I am a little confused with this marking. The silver content is marked to be '75' and according to silver mark catalogs the contents in the 18th century were 72, 74, 76, 82 and then from end of 18th century 84. Is this a new content?

Otherwise the beaker seems correct. The style of the beaker is from the period, assayer Ivan Frolov (1738-79) and silversmith possibly Zacharias Heideman.





Regards,
Juke

Hello!
According to the rules of those years, it was allowed to make silver products above the official silver sample. In such cases, the number of silver samples was marked with separate digits: 73, 74, 75, 76, 77 etc.

Thanks for the clarification! Then the marks in many of the silver mark catalogs are just examples of the silver contents in 18th century.

Good afternoon, dear Juke*!
Everything is fine with your item.
The "75" sample actually took place in the mid-18th century.
It is rare, but it does occur.
I also have a sample "75" item: 1740, St. Petersburg...
And, yes, “75” was placed with separate punches: “7” and “5”.

Sincerely yours, Nikita