For sale is my 3v Bb frankentuba. It has been made by combining 3 different tubas. The valves are from an Olds 099, the leadpipe from a miraphone 1291 and the main body from a Boosey and Co. It is in the style of an American tuba. It is not compensating but this does not affect the tuning. It is very open and easy to play. Feel free to ask any questions. I am only able to upload one photo as the others are too large. Send me an email and I can forward more photos.