Bell Diameters are 11.0″ & 6 1/2,” bore size is .563″& the height is 30 1/4.”
This horn has the Conn patented short action valves. This instrument differs from the 60I because of those short action valves. The 60I has the old style, long action valves.
![Image](http://i1.imgrr.com/1Lu/7097_41D31635-C70A-4185-B1B7-CA9B8FEA51DF.jpeg)
https://simonettitubacollection.com/ins ... -piston-3/