my suggestion about the author of MV

[rasiratros]

As far as I can tell by scrutinizing the You are not allowed to view links. Register or Login to view. column text very closely for years and years, the first two rows  (which are very close together) are the same hand and they are offset by one character (an attempt at trying to decipher using a simple substitution cipher, it looks like).

There is a partial third row (the one Anton indicated) and a very partial and hard-to-see fourth row (additional attempts?).

 yes. i agree. it can be so, but why the second column "b" doesn't match to firs column "b". or this is not "b"? maby its a number"3", and opposite first "d" is a number "2"