I think, as I mentioned upthread, that it may be Mssr (they didn't always add the "s" at the end)—plural for mister.
It now occurs to me that it may not be Slinnski/Slivinski. The "S" is different from the one he used for Slavinski. It's likely another form of S, but if it is, it's the only time he uses it. Some people wrote "d" that way if it's a capital, which means Delinuski is another possible reading and is once again a Jewish name from the Prussian area.
Mssrs Delinuski Shapinski.
I've noticed many of the descendants with these names are either merchants or in the medical profession. That seems consistent with clients and contacts Voynich probably sought out for selling and buying his rare books, professionals with a higher economic status who would have the means, and also might provide the names of collectors with old libraries with manuscripts to sell (or know where to find them).
It now occurs to me that it may not be Slinnski/Slivinski. The "S" is different from the one he used for Slavinski. It's likely another form of S, but if it is, it's the only time he uses it. Some people wrote "d" that way if it's a capital, which means Delinuski is another possible reading and is once again a Jewish name from the Prussian area.
Mssrs Delinuski Shapinski.
I've noticed many of the descendants with these names are either merchants or in the medical profession. That seems consistent with clients and contacts Voynich probably sought out for selling and buying his rare books, professionals with a higher economic status who would have the means, and also might provide the names of collectors with old libraries with manuscripts to sell (or know where to find them).