The only Electric tenor I have ever seen. Clearly marked 'sample' on the neck stick and on the body. The pick up is similar to that found on the electric style 3 Don in the Notecannons collection.
With only a vol control, this probably dates it in the first year of electric production.
Sample clearly written on body and neckstick, similar to that on other early prototypes and one off instruments.
Unlike many of the later electric instruments such as the Silvo models, which had a black plastic cover over a disc of wood filling in the cone 'well', this one has an ali casting which is then covered by the metal coverplate.