A question was sent to me about a similar instrument. This looks like it would be a good hard rubber clarinet, like the Emil Jardin.
Information from the mini-blog: Whittle was a music company here in dallas from the early 1910's till about 10 or 15 years ago. (around 1995).
This is a brand page for the ZENITH trademark by WHITTLE MUSIC COMPANY in DALLAS, , . Write a review about a product or service associated with this ZENITH trademark. Or, contact the owner WHITTLE MUSIC COMPANY of theZENITH trademark by filing a request to communicate with the Legal Correspondent for licensing, use, and/or questions related to the ZENITH trademark.
On Thursday, April 09, 1942, a U.S. federal trademark registration was filed for ZENITH by WHITTLE MUSIC COMPANY, DALLAS. The USPTO has given the ZENITH trademark serial number of 71452256. The current federal status of this trademark filing is EXPIRED. The correspondent listed for ZENITH is ? of *****, *****, ***** ***** . The ZENITH trademark is filed in the category of Insurance & Financial Services . The description provided to the USPTO for ZENITH is BAND AND ORCHESTRA INSTRUMENTS-NAMELY, SAXOPHONES, CLARINETS, TRUMPETS, CORNETS, FRENCH HORNS, TROMBONES, SOUSAPHONES, BARITONE HORNS, AND MELLOPHONES OR ALTO HORNS.