What is a King Tempo 2 607 Trombone with a F attachment worth?

The value of a King Tempo 2 607 Trombone with an F attachment typically ranges between $800 to $1,500, depending on its condition, age, and any modifications. Trombones in Excellent condition or with original parts may fetch a higher price, while those with wear or repairs may be on the lower end of the spectrum. For an accurate appraisal, it's advisable to check recent sales or consult with a professional instrument dealer.