www.925-1000.com

Almost every Imperial Russian Judaica silver is faked because fakers think it`s lucrative to sell. You better forget the offer, although it`s not clear to me how the engraving proved to be modern; It`s about unleavened bread.
Regards

Hi,
I see unicorn of Schwäbisch Gmünd (19.Century). 13 Loth was more common, but there is silver of 12Loth fineness (.750). Solid silver, anyway.
Regards

JAT is for Swedish importer Johan Alfred Tancred in Malmö, registered 1926 known until 1948.
Regards

Show us the close up of the coat of arms; it does not look Imperial Russian, could be custom made for royalty elsewhere, or Russian heraldic lower nobility. How is it attacched to the frame ? There are too many pitfalls with this kind of ``royalty, imperial`` items. Also, show us the back of the pic...

Die Goldschmiede Körner und Proll wurde 1845 in Berlin von Herr Friedrich William Proll und Herrn Franz Eduard Körner gegründet. Das Unternehmen war von seiner Majestät des Kaisers und Königs von Preussen der Hoflieferant. The goldsmiths Körner und Proll were founded in Berlin in 1845 by Mr. Friedri...

1. German Reichsmark crescent and crown for silver
2. 800 fineness
3. The maker`s mark for Körner & Proll - Berlin

Regards

J.G. Joseph Gloster, Birmingnham, date letter d for 1903.
Regards

This is modified coat of arms of Neuchâtel. The same mark is depicted in Rosenberg (page attached).
Mid 19th century. That`s all I can tell.
Regards

English term is reticulated silver. See here:
https://www.youtube.com/watch?v=mn6L0dGCpZI

Pay attention how the surface melts to create the pattern. When done, the sheet can be worked as usual.
Regards

Precious metals appear in their natural form like this (e.g. gold nuggets with uneven surface). The technique to create this effect is quite easy; you take a sheet of silver and heat it with the jeweler`s torch slightly beyond red colour. The surface will start wrinkling. It requires some skill, tho...

First mark on the left:Cairo (more likely) or Beni Souef
Arabic 18 for 750 gold.
The middle mark: Ibis bird for gold
Letter P for 1939 -1940, the last year when Latin alphabet was used for date letters.
Regards

There was Solomon Schonberg, a goldsmith, in London at the time.
But without full set of marks it`s difficult to tell. Every link is marked to ensure the duty was paid on full length of the chain.

Hi,
It is 9 karat gold, i.e. 37.5% gold in the alloy; therefore number 9 and then 375 in the mark.
More likely American than British.
Regards

Uncommon combination of cut glass insert and Russian trompe-l'œil podstakanik. There are several issues: 1.Do marks on the insert match the marks on podstakanik ? 2.Applying marks on silver rim over glass is not possible unless one brakes the glass; on the other hand, it`s possible to detach the sil...

Solid silver 12 Loth, old standard (.750 i.e. 75% silver in the alloy) used in several countries (Germany, Austria-Hungary).
See here:
https://www.925-1000.com/a_Standards.html

Regards

Repeated 84 in Persian alphabet indicating .840 fineness. There is no maker`s mark.
Number 4 is distinctive for Persian alphabet, i.e. it`s different from Arabic, therefore attribution for Iran.
Regards

or Henrik Hacklin

Nikolai Nikitin 1845 - 1874.
PL 1365

Regards

Old silver alloys were more complex in composition with traces of several metals and they must have varied a lot depending on the site of ore melting. That could be the first reason of different color. The second reason is environment where the item is kept; polluted air, humidity and acidity may pr...

Hi, The most reputable British auction houses rely on this book when they attribute teapots to Dresser: Christopher Dresser : A Design Revolution Hardcover – January 1, 2004 by Michael Whiteway (Author) It seems the book is the most valued reference; if the design is not there, it`s not Dresser. Reg...