Is the cargo body in the banner picture a steel composite (wood floor) and does it have an ID data plate located above the reflector right side (drivers side)?
The data plates usually showed where the body was assembled (mfg name by code), date of mfg.( month & year), contract number, body model number and nominal length & width of cargo body. A good example is an AFKWX-COE data plate from Kees51:
