Dodge APT speedometer detail

[BCA]

I recently saw a very original, unrestored Dodge D3/4APT, dated July 1945. The speedometer does not have a tripmeter, just the odometer. Otherwise it is a typical-looking military speedometer: luminous needle etc. The line drawings in the maintenance manual and driver's handbook show a tripmeter and the part number, CC 923860, is the same as the American WC-series trucks which had a tripmeter. Any comments from other APT owners to suggest that maybe some or all APT's had speedometers which did not have a tripmeter. ......... Brian