Here is a picture of an original battery for a 65 Shelby. Please remember that some of the cars had Cobra battery vent caps.
Texas Swede
Reply #10: To be clear this is an original battery for a Cobra street and most race from about CSX2117 through CSX2589 (1963-1966) sitting on a work bench at Shelby American. It has an all plastic case. It has two adhesive back labels on it, the small one on top (very blurred in this picture) and the large one on the long side facing the camera. The design is a carry over from a Prestolite® late 1950s model. Ford purchased the Autolite® name from Prestolite's parent company in mid summer 1962. Prestolite continued to make electrical and ignition parts for Ford at least until 1983. Many of the internal ignition distributor parts Ford used up into the 1980s were made in their plant in Decatur Alabama, including dual point breaker plates for performance Fords street and race including the ones with Torrington® radial roller bearing fitted breaker plate assemblies.
Reply #17: The flat washers and wing nuts in the picture (I have seen clearer better focused ones.) Jeff posted are from the production Cobra parts department the best I can tell. They were standard for CSX2201 and later Cobras. The J-bolts are not the same as CSX2201 and later Cobras. The die cast zinc wing nut is a certain specific version of Harley-Davidson® motorcycle part. I have helped multiple early 1965 GT350 owners and or their restorers find a pair of wing nuts, they are not rare or expensive. Show car wise it is best to buy extras as the bare as cast zinc die casting darken with age and exposure to battery fumes fairly quickly. (SFM5S142 and CSX2310, both unrestored early 1980s, both used the same wing nut. CSX2310 still uses its original J-bolts and wing nuts to this day. Did all early 1965 MUSTANG GT350s use the same Cobra part? I have no idea. )