I refer anyone interested in the subject to the material on the 1951 Kaiser Deluxe 4-door sedans with the "Dragon" packages, based in part on Kaiser-Frazer Sales Corporation Confidential Bulletin # 66 (All Direct Dealers series) from April 27 1951 that not only identifies the use of vinyl top on the Jade Dragon, but gives the list and dealer cost for the Sport Topping.
I also refer those interested to Confidential Bulletin #60 dated February 6, 1951 that identifies 'Dynasour Vinyl Top" for the Gold, Emerald and Silver Dragons as an extra cost option as part of the "Dragon" packages.
Last but by no means least, Confidential Bulletin # 72, Dated December 5, 1951 (Direct Dealer Series) lists 3 different Dragon combinations offered in the 1952 Kaiser Virginian Series.