I don't care for the look of the wing vents myself.. but I do like the 'push button' door handles as opposed to the old school refrigerator door handle look.
In the AD trucks, 1950 was the last year for 'no wing vents', and the push button door handles started in 1952.
The doors, if i'm not mistaken, are totally interchanable between the 1947 thru 1953 years.. so if you have a '53 with no wing vents and the 'turn down' door handles, it probably has '47 thru '50 doors on it.
If the doors have 'push button' door handles, then somebody probably 'converted' them to no wing vent windows.
