25w and 411 Bedford truck

This week i recieved my fourth 25W or 411 Bedford truck. I already had the standard all green version, the older one with black mudguards and the rare one with dark green cab. This one has olive drab army hubs. A version i have never seen before. All parts are original and not tempered with, so it must be factory made. Are there any members out there who can tell me more about this version?

Hi Kas, the first option that crosses my mind is this one. A simple swap during production, being short of correct colour wheels stock. My light green example happens not to show the same casting, yours does. In many cases we will never know what actually happened. The reason can be very commonplace, human, incidental. Kind regards, Jan