Leningrad's unknown probe, P-C initials 1873-1876.

Features
- Alphabet
- П-К 1873
- Years
- 1873–1876
- Shape
- Direction
Description
The rectangular form is divided into two parts, the upper part of the glade indicates the initials "P" and "K," between the letters is the point, the line goes down, the lower part of the glade indicates the year "1873." Claymo belongs to an unknown test master. (1873-1876) Form:
Similar hallmarks

П-Д 1851Claymo Leningrad - Dmitriev Pavel Petrovich - initials of P-D - 1841-1851

ВПClaymo Probe Master Gorky (Nizhny Novgorod) - All Volod - Initiators of the GP - 1824.

IШ 1895Claymo Probe Master Jelgava (Mitava) - Schmidzek Josif Aleksandrovic - Initiators IS - 1895

Ф-П 1849The stigma of the test master of Astrakhan - Pogodaev Fedor - the initials "F -P" - 1849

I-В 1861The brand of an unknown Leningrad probe is the I-B initials of 1861.

А-ШClaymo of an unknown Odessa probe, initials of A-S, 1843-1844.
