[Ger-Poland-Volhynia] Russian Language that there is something following the last "n"

[Frank Stewner]

Hi,

I do not know what there is in Russian, but in old German writings like in
the St. Petersburg church-book duplicates you often find a stroke above some
letters (like n, m) which indicates to double that letter.

Thus Itterman becomes Ittermann. 

Frank Stewner