Help please

[тита]

Good day . <! - ~ 1 ~ ->
Please help evaluate the web .
They found him in the apartment ... grandmother washed all that was in the house and substitution inscription on the canvas that were .
was written here that ...
web from home Korobkova and dated 1720 year.
There is a feeling that underneath that it was .... there was any set of numbers on the canvas , but a substitution and it is evident that if it is left only to see if the light ..
pzhlsta help ... who is the author and that costs this painting ? <! - ~ 3 ~ ->