1958 Jaguar with SA 3 speed coaster brake hub, this original?

[genesmachines]

I have a very nice 1958 Jaguar Mark II that has a Sturmey Archer 3 speed coaster brake hub. I need the Schwinn guys to chime in on whether this hub was an option. The hub appears to be dated? with what looks to be a 58 8 stamped on the hub, the 5 is stamped very nice but the 8 is a guess as its light. Thanks in advance for any help, Gene

 

[OptimusJay]

Sharp Mark II Jag! Yes, the S/A TCW coaster 3 speed was an option to the standard 3 S/A 3 speed.
Jay

 

[eastema]

Sweet!

 

[genesmachines]

yeah, it and the rest of the bicycle are for sale