Does anyone have info on who might have been the manufacturer of this horn. It looks like a Victor, came on a Victor but probably is not a Victor

The horn is 20-½" long and the bell diameter is just a shade over 13-⅜". The Victor data book gives the correct bell diameter for a Victor horn as 13-¾" plus there is no decal but there is a cleat to lock it into the elbow. It came to me on a fire damaged Vic II, Serial 35782B so it is very unlikely to have been the original for this machine.
Really just curious as to where the horn may have originated.
Thanks,
Randy