Ron Smith provides a cover depicting Nick Jolly, an 18th century highwayman, who's transported into the 20th century by an 'amazing Time Ray, which had also transformed his trusty mare, Bess, into a jet-propelled horse of steel'. Apparently....
No, this isn't the original art. For some reason I thought it'd be interesting to see it sans text, so I did a little PShop jiggery-pokery. Yep, I don't get out much.....