What the "Buck" Used to Be: How a Knife Marked the Dealer Position and Why It Vanished

https://emiliojqnl442.iamarrows.com/what-does-diamond-hands-mean-in-trading-a-practical-list-based-deep-dive

Which questions about the "buck" will we answer and why they matter? Across centuries the phrase "passing the buck" entered everyday speech, yet most people picture a metaphor rather than an object