Hey guys, I have some good news for you, well bad for some of you...
I have sent bunch of hi res pictures of my shashka to a real Russian collector and researcher in these weapons and this is what he said...
Hi Erik!
The sword is authentic 1890’s shashka with a blade of Caucasian origin. N2 cypher was added after 1910 year. Silver - work of daghestanian craftman. Blade - bit earlier, daghestanian or Georgian (most probably).
All the best
I'm not sure what he means by N2 Cypher but everything else sounds good to me.