The King model 1265 ‘Jumbo’ sousaphone is not your average sousaphone. Produced in the 1920’s these were the biggest of the sousaphones every produced by King. These massive horns have a 32″ bell diameter and weigh in at 40 lbs. They are for all intents and purposes a full size tuba in sousaphone form. This particular specimen is in excellent condition and was overhauled/refinished at some point in its past.