Serial number 121523.Good condition. Original case. 2 original mouthpieces. Values work. No dents. lacquer good except near mouthpiece stem.
Have bill of sale from 1942. Not sure before that. have other original paperwork.
Thank you for contacting Mearto with your appraisal inquiry.
The presented object appears to be a Martin Imperial Trumped with the serial number #121523. The serial number dates this trumpet into the year 1937.
This piece is in good condition, comes with an original casket and there is no serious damage visible in the images provided.
A fair market estimation would be between 300 to 600 USD.
This estimate is based on actual recent past recorded auction sales of comparable items. Retail "asking prices" can be higher and may vary.
With kind regards,