This is a 1927 Bach Stradivarius model 6 with a 2 leadpipe. This instrument was built at 11 East 14th Street, here in New York City. It is very unique since it has a nickle valve casing. The valves have been redone at some point and are still tight and have serial numbers on them. The guides are numbered and nickle as well. It has a 6 bell, and a 2 leadpipe and really plays great. It responds well in all registers, and has many different colors. The first slide even has a dump slide! Very nice playable example of an early three diget New York Bach! Serial number is 607.