Conn 20B Connquest
Date: 1954. Owner unknown
The 20B Connquest was an early attempt at creating an intermediate model trumpet, one step above the Director. It had a #1 (0.438") bore and was built from 1954 to 1955. Considering the design, marketing and model number of the 20B, I suspect that it was a cheaper version of the 22B New York Symphony.
One minor difference with the 22B from that period is that while the 22B had two braces between the leadpipe and the valve cluster, the 20B had one brace.
The quote from the 1955 catalog below about the clickless crysteel valves is apparently only valid for the 1955 20B. I am reliably informed that the 1954 20B had Pan American style valves.
What Conn said in 1955:
Expressly designed to meet the big demand for a fine moderately priced Conn. Built in medium bore, Bb and A. Fine tone quality and accurate intonation. Features famous Clickless "Crysteel" valves, recessed valve caps, conical bottom springs for smooth, fast action. Length: 21½"; weight 2 pounds, 12 ounces; bell diameter 4 5/8". Comes in special, eye-appealing and modern pyroxylin tweed covered, plush lined case, with mouthpiece and music lyre. Highly polished brass, nickel trim, clear lacquered.