Letter of Catherine II, that suggest?

[Konstantin]

Сообщение от Maroussia ; 1963551"

I think that the historical value is not

Take a look here
http://www.znak-auction.ru/antiques/3.htm
Auction House " sign" hold an auction on February 18, there are lots and such :

The Charter of the Military Council of the 2nd Red Banner Army "for the successful preparation of junior lieutenant in 1939 "

Issued by Mironov , AF in the 1939 paper . Size 42,6 × 26,2 cm

Sale price:
4000 rubles.

Here is an overview of their trading
As a result of last fall, 50%of sales - the result of higher than average , but they do not remain happy for them 70-80%of the common.