I bought my first '52 3100 40 years ago which unbeknownst to me, came with a front bumper on the back. When I removed the nuts and started to pull the bumper free, it shot off and about catapulted two yards over. The rear bumpers look almost flat compared the the front bumpers.

1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission