Hi Erlikhan,
Thank you for the link to the Blucher sabre that you included. In looking at the actual form, it is clear that these had distinctly different elements in the langet and the quillon. One thing about the langets on yours is the elongated rectangle shape that was key in the 1788 sabres in England as well as in Germany. The grip shape, langets and the scabbard without drag may suggest this to be either an early version of the sabre that became the M1811 Blucher sabre, or of course, quite possibly one that was produced in either Austria or Hungary. I think a look at Wagners "Cut and Thrust Weapons" might reveal more.
In any case, this seems a sound example of a turn of the century cavalry sabre from Europe, and beautifully 'unrestored'
I like these fighting weapons left pretty much as is, aside from checking any live rust etc.
All the best,
Jim