CB92 tail-lights are very similar. All ‘59 and the first 78 of the ‘60 models used the “250” tail light from the C70. Late '60 U.S. models used the “255” CA71 units, and after '61 the "253". European and late domestic models used the C71 light assembly, and embossed RR26-3 on the reflector indicates authentication of Ministry of Transport as Rear Reflector.
In the early ‘60’s Honda America retro-fitted the original, small light assemblies with the “268” CB72 light assembly and a matching bracket, and was fitted as original equipment on the later CB92’s. In the UK after '63 bikes got the "268" tail-light with a Stand-up bracket made only for the CB92
The lamp fitted to all the early lights was a double filament festoon bulb quite fragile and hard to get these days.