Engraving, ask for assistance

[EvgeniyMarkov]

Сообщение от artman

Dear , what you say on paper? Like structure can be seen ... In what century was this paper? Thank you .

You also wrote Guriev , Igor , experts can identify.

In some museums have special database with samples of paper of different periods . That's where specialists in the microscope can compare your prints and old paper on the structure of the fibers of foksingam and other contaminants.

In Kiev, before doing so Yury Vakulenko in the Russian Museum .

In Russia, like the Hermitage can help you.