I was able to find the year but not the value, it was made in 1923-24 and the serial number is 113456-533, I maybe selling it so i need to know its worth.
Don't get your expectations too high. Early True Tones (not an Aristocrat) don't have a lot of value because their keywork is antiquated and needed repairs can also decrease the value. Checking closed sales for comparable horns is a good way to get a ball park estimate.