History of Odessa: hurdy-gurdy from Johann Nechady

[sergejnowo]

On the occasion, was the happy owner of the Georgian version of the hurdy-gurdy Odessa industrialist Johann Nechady with Balkivska, 191.
As for me, told about 1880 - 1890 year of production, the factory number 1711. Sharmanka working, playing 8 Georgian melodies and of course Suliko !
Judging from the scanty information from the Internet, the apparatus in such a performance has the stamp of the master.
Do not prompt where to find the stamp?
I present to the maximum safety of staff photos. In my eyes, and my understanding of technology, all original. Although it is possible that the roller - "music-stuffing" has changed.
Weácan please, whether it is a good idea if I'll work on the restoration of the hurdy-gurdy?
Or is it better to leave everything as is?