1953 panel is correct:

350 indicates 2-ton
35x-27 = 270 engine
35x-24 = 248 engine

351 = 2 ton with 137" wheelbase
352 = 2 ton with 149" wheelbase
353 = 2 ton with 161" wheelbase
354 = 2 ton with 179" wheelbase
355 = 2 ton with 199" wheelbase