Here's a picture of a '54 with standard driver mirror (left hand, short fixed bracket). 1953 might be the same. I know that there was another bracket that went up at approximately a "45 degree angle" (the bracket in the picture below would be a "0 degree angle"). Maybe the change in angle was because of the vent window (since 1951).
[img]
http://home.nycap.rr.com/lederman/images/mirror.jpg[/img]
Hope the image is clear enough. The image is from a 1954 sales catalog.
There are other good images of various years at the following site. Check each year and be sure to scroll to the right.
Chevy Duty year identification Tim
[ 01-07-2002: Message edited by: tclederman ]
