Sorry, you are correct, 47 was a typo, the grill molding on the 48 is correct, the grill on a 50 has vertical ribs, whereas the 48 is an egg crate type. see link, cursor down half way to 1948 Packard superclipper convertible. http://www.imperialclub.com/IML-specific/Spotlight/Nov02/
I think youre right Wrenchhead, '36/39. Overiders throw me off though, they werent on all the 37 converts, maybe an option. The 35 looks like it too, but they didnt have the reflectors in the front bumper, see link http://www.carnut.com/cgi-bin/04/image.pl?/show/04/lou/nat008.jpg
ah... I believe this is a 1974 Cadillac Eldorado Convertible based on headlight configuration and tailight/rear bumper...see link Link to "www.affordableclassicsinc.com"
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