Paul brings up a good question. This was probably a 289 car running A/SP. One could probably argue that the only true Dragonsnakes were the Factory cars raced by the factory (I think there are only two) and those cars prepared by the Factory for customers. Some of cars were converted to drag cars without any kind of factory assistance, much like the independently prepared Comp. Cars used for road racing.
For example:
CSX 2019------Factory
PR Dragonsnake
CSX 2093------Famous Costilow/Larson car. This was an independent car, non factory built, perhaps the most famous of all the DS cars. It is also the car Ed Hedrick bought (note Ron's pictures)
CSX 2248------Factory built for Customer (the El-Cid car)
CSX 2353------Independent (Siebens-Sidel car. Scant history)
CSX 2357------Factory car (second one built)
CSX 2427------Factory Prepared/independently campaigned. Currently owned by Rich Mason who owns CSX 2196 aka the Flip Top, Ken Miles car.
CSX 3198------Factory Prepared car for Harr Ford. Only 427 built.
I will have Ron post some history out of the Registry that was presented on a former post.