How a Buck Knife Came to Mark the Dealer: Dealer Rotation, Marker Methods, and Justice in Western Gambling

https://bizzmarkblog.com/how-1890s-riverboat-gambling-adopted-provably-fair-mechanics-and-changed-betting-forever/

How common was the "buck" as a dealer marker in frontier games? The data suggests the simple objects used to mark the dealer in 19th-century cardrooms were more varied than people imagine