Your engine number indicates it came from a 53 Super. If you haven't seen it, take a look at the engine ID guide on this site (go to the SHOP tab from the home page, then to engine identifcation).
Maybe your car is really a Super and not a Special? The Specials that year were all 6 Volt systems, while the Super and Roadmaster were 12 V. There were other differences in the series that year too which can be investigated.
Look on the cowl under the hood for the body id plate. There should be a model number on it like 53-4419. We can decode that to see if it is a Super or Special. Also the VIN can be examined. Can't remember right off the bat if it contains the series information though.
[This message has been edited by TODD (edited 12-24-2001).]