Some information about type-designation of early Henschel-trucks:
The first digit tells the payload in tons. If there are two digits, the first one tells us the number of axles and the second one the payload in tons (i.e.: 33 B 1: three axles, 3 tons payload)
The letter in the middle of the digits, tells us the engine-version (i.e.: A = 6648ccm, 50/55/60 PS,...)
The last digit tells us the wheelbase: i.e.: "0" means "tractor-unit" (shortest wheelbase..)