Qrt.S wrote:Hi Oel,
You are both right and wrong. The worker's head mark was used as from 23.6.1927 to 13.6.1959. However, the thing is that as from 7.1.1954 the oval shaped frame was abolished but the use of the "head" in an other frame continued as mentioned above.
This again a sloppy fault in the mentioned book. The book does not tell that the oval frame was abolished 7.1.1954. The assaying mark below superseded the oval frame.
This is not either mentioned in this "perfect" book. Kindly add this missing mark to page 250.

Hi.
Dear Qrt.S You are confused and try to confuse Oel. )) ((
The punch shown by you was used since 1927 to 1958. It is intended only for a punching of sets of leafes ("books") of very thin foil of precious metals. Russian term: "Susal gold", "susal silver".
Leaf gold and leaf silver. These leafes use for a plating, gilding. It was punched on sealing wax, because on a thin leaf the punch can't be put.
In "Rules.." from 1954, about this punch is written:
" Клейма продолговатой формы с закругленными углами, состоящие из знака удостоверения и цифры одной из следующих одиннадцати проб, установленных для желтого сусального золота и сусального серебра: 910, 920, 930, 940, 950, 960, 970, 980, 990, 1000 и для зеленого сусального золота–750 – предназначены для клеймения на сургуче книжек сусальных драгоценных металлов. "
My translation: " Punches of an oblong form with the rounded-off corners,
the certificates consisting of a sign and figure of one of the following eleven thinnes, established for yellow leaf gold and leaf silver (very thin foil for a plating) : 910, 920, 930, 940, 950, 960, 970, 980, 990, 1000 and for leaf's green gold - 750. It is intended for a punching on sealing wax of books of precious metals leafes."
I hope helped ))