The misuse of the term "First-Series" originated from filthy Task Force people who bastardized that term to include all A-D trucks from '47.2 through '55.1.
The interesting thing about this is that these "shameless" people do not refer to any of the Task Force trucks as Second Series. Not even the 55.2 second series truck.
Hope this helps.
(No offense intended to most of you Task Force fans.)
Carl


1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission