Well the wire is Delco "Packard 440" 7mm Ignition wire. It was used on alot of cars in the 50's. It's usually sold in 100ft rolls. I just brought a partial roll from ebay. I've heard it referred to as "HotRod" wire. Originally the wire was made by Packard Electric. Before it was enveloped by GM/Delco.
I just think it looks more period then the plain, unmarked wire you normally see. I think the original "440" was solid core, but all this is stranded, as is all the modern versions of it. Restoration Supply in Escondido, CA caries it. Also here is a link to the current supplier I belive.
http://brillman.com/index.php?cPath=23_24 They carry many different styles of "period" igntion cables including the older cotton braided style.
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