Wiktionary
coachwheel
n. 1 A cartwheel, the wheel of a horse-drawn coach 2 (context UK historical obsolete slang English) A crown coin; its value, 5 shillings.
Usage examples of "coachwheel".
Capital sport it had been, too, with Sir Ralph Colebatch offering odds on Miss Trent, and even the Rector wagering a coachwheel on the issue.