I know of a 53' Super Convertible (56C) that's been sitting in a storage facility the past 20 years. It's in original unrestored condition with the exception of the top, and only has minor surface rust on the front & rear bumpers. The driver's door jamb tag lists the following: 3678I564. Do these numbers provide any clue's and are there other locations that would provide more serial #'s? Also, what is the value of this car in your estimation? Thanks! Mark