Vintage Mouthpiece Wind Trumpet Brass Early Soviet Union 1920s

Vintage brass trumpet mouthpiece early USSR 1920s patina

I don't know what kind of trumpet this mouthpiece is used for, I'm not a musician.There is a stamp on the mouthpiece: Hammer and sickle - the trademark of the Soviet government in the early 1920sAn internet search did not yield any additional information. I think only specialists in this field will be able to name the manufacturer of this device. Most likely, such a plant or factory no longer exists and such mouthpieces are not produced.

Judging by the appearance, it seems to me that the mouthpiece was made in the 1920s in - a country that no longer exists.It is made of brass, heavy for its size and is in very good condition. I did not remove the patina on purpose. Buyers are divided approximately 50/50: some like the patina, some like the shine.I am sure that it can be safely used further after a little maintenance.Judging by the size of the mouthpiece, I can assume that it is used on a tuba or equivalent large trumpet.

Please see the dimensions in the photo.
Weight - 150 g
The Hammer and Sickle brand is the early era of the communists' rise to power in the Soviet Union.

The mouthpiece is sold as is, so carefully look at the photo and ask questions.Best regards, we are waiting for a buyer!