
Just hoping someone could shed some light on vehicle Serial Numbers.
a. Is there a method/system available that will give details based on the SN. i.e. Model designation, Service Details .....
Just I've been given some photos of U.S. Army vehicles however they do not show in Fred Crismon's book U.S. Military Wheeled Vehicles as some appear to be variants of prototypes i.e.

This is neither a Kenworth model 552 nor the XM523.
Any assistance ID'ing via SN would be appreciated.
(I would load the photo of the entire vehicle however PB is being a PITA at the moment).
Ta.