Unidentified assay master И.З

[igor]

Russian Assay Masters Marks 1795 - 1898 unidentified assay master И.З Odessa/Одесса.

In the address book of Odessa for 1877 (p. 53) in the assay office at Tiraspolskaya St., 4,
the assayer Ivan Fedorovich Zubarev (Иван Федорович Зубарев ) is indicated.

[Mart]

Yes, it is he, but Zubarev worked in Odessa until 1882.

[igor]

In the address book of Odessa for 1883 (p. 159), the assayer Ivan Fedorovich Zubarev is still listed at Troitskaya St., 47.
The manager of the Odessa Assay Office, Ieronim Ivanovich Kondratovich (Іероним Иванович Кондратович ), at st. Uspenskaya, 95

[Mart]

The information was transmitted to the directories in advance. Changes could happen later. Ferdinand Ionscher - "Ф.I."- started working in Odessa in 1883.