Here is my jeep at the Abbotsford Air Show about 7 years ago when it was painted as if it were Tactical Air Force, Normandy 1944.
RCAF jeeps in Canada had markings in white (presumably) on hood (bonnet) and usually
R.C.A.F.
a DND number in 20,000 or 30,000 range (shown as 20.000 style)
and two letters (usually first and last letters of name of station e.g. C,X, for Comox (note the commas) or if two words, then first letter of each word e.g. SI for Sea Island.
Overseas the RCAF used RAF type numbering with 5 or 6 digit number. I have seen a photo of a HUP overseas with a home service DND number on the front bumper.
RCAF jeeps would likely have been painted army colours as the British started doing that for their RAF vehicle in 1940 I believe. I have some articles on RAF vehicle markings from the UK's Miltary Vehicle Trust magazine WINDSCREEN.
Post-war Canadian RCAF jeeps were painted a blue -- ref. photos of an unrestored M38A1CDN (1953 Ford with special data plate contract number for RCAF) that was found in Alberta a few years ago.
I have only found 1 photo of a WWII RCN jeep but no date (WWII MB/GPW). Small circular marking on side forward of door well. A black (?) circle about 5" diameter with white letters
RCN
_____
A-102
As well there is the standard Army DND number over the rear wheelwells. In this case 61-### So this jeep was likely reassigned from the army to the RCN.
At some point, probably post-WWII, some RCN jeeps had a name plate of the ship affixed to the front - a board with brass letters spelling out the name of the ship. Guess who would get to ride in the ship's only jeep? Also for Korean War period, apparently they also would paint the ship's number on the sides. (Ref: Scott Lorette's HMCS Cayuga M38CDN jeep.
I also have a lovely WWII RN jeep photo taken at Gibralter (complete with mini white Ensigns painted on) and there is also a photo of RN sailors riding in a camouflage painted jeep in Anzio but it is likely a borrowed army jeep.
COLIN