Denny,
"The Class T4 Commercial 1947-55 first and third place winners have chrome grills, hub caps and bright window trim."
What years and specific models were the winners?
What kind of documentation are you looking for?
Presumably only truck information? The car stories are interesting but not pertinent to what was available on cars during that time-period.
I do not have a 1952 Truck Data Book but I have the 51 and 53 books.
Also, the GM Heritage Center has 51-53 Specifications Manuals.
They show standard chrome bumpers in 1951 (3000 series only, anvil gray for all other series: 8/15/51) but painted standard bumpers (anvil gray) in 1952 (3/14/1952).
The 52 and 53 trucks had no deluxe options and minimum bright metal as standard features, and no bright-metal options.
One can, of course, correctly speculate that a dealer might have swapped 1951 parts onto a new 1952 truck.
