Must have been 14N22 chassis or an earlier version. At
first glance they all look the same but there are differences.
CRT was always mounted to chassis. They were indestructible.
Also had the best tuner/IF in any set. Could pull in fringe
stations the NO other TV could get at all. IMHO and others
they were the best B&W ever built by anyone, anywhere
at any time. Still lots out there.
73 Zeno