Here are some factors that could affect the value of your trumpet:
* Condition: The condition of the trumpet is a major factor in determining its value. A trumpet in excellent condition with no major dents or scratches will be worth more than a trumpet that is damaged or worn.
* Age: The age of the trumpet can also affect its value. Older trumpets may be more valuable than newer trumpets, especially if they are in good condition and have a desirable serial number.
* Features: The features of the trumpet can also affect its value. For example, a trumpet with a gold lacquer finish will be worth more than a trumpet with a silver-plated finish.
* Market Demand: The current demand for Bach Stradivarius trumpets can also affect their value. If there is a high demand for these instruments, they will be worth more than if there is less demand.
If you are interested in selling your Bach Stradivarius trumpet, it is important to get it appraised by a qualified instrument dealer. This will ensure that you get the best possible price for your instrument.