Nikkan trumpet No.20 model. Very old, antique instrument for the purpose of collection.Piston No.2 is not working. As you see, old type valve guide and stop nut (?) are missing. If you get those parts, you may fix it. All slides are normal as you find them.
Also, the welding spot between main bell part and valve (piston) part (as shown precisely in pictures) is separated. This part may be fixed by re-welding, if you want, and then can play this instrument. Mouthpiece is from Tokkan company. Sold as is. No return, please.