I purchased the instrument on shopgoowill.com for a $774.96 I have attached a link for the purchase below. Unfortunately I only have one picture, if possible I would like an estimate that assumes the trumpet is on good working order. According to an online serial number list for Getzen instruments the date range for the manufacture date is 1972-1975 but I am not sure if that's correct. The purchase has been confirmed at shopgoodwill.com but I have not paid for the trumpet yet. Any help you can provide would be greatly appreciated. Thank you

It was purchased in an online auction at shopgoodwill.com