Vintage Holton Cornet Mouthpiece From NY Musical Instrument Repair Shop

Description

Vintage Holton Cornet Mouthpiece From NY Musical Instrument Repair Shop.
No other identifying marks. Cup of mouthpiece measures approximately 1” across. Inside of cup measures approximately 5/8” across.
I believe it is brass under the silver plate but not certain.
I got this from an elderly trumpet player who also had an uncle who ran a musical instrument repair shop for decades in New York. This mouthpiece is from this large lot. Due to the amount of years these mouthpieces span I can’t say what era these mouthpieces are from. Look for other mouthpiece and instrument listings - I will be posting many more from this lot.