called for. I too was mystified by the Hal Dorn chips when I first spotted some, to the point where I did not buy one. Later, upon learning it was a real Nevada issue - I had to redouble my search efforts, until I found a couple. Aside to Carl Shalit - there are also $1 Hal Dorns, or K-Bar if you will, out there; I've never seen any higher denominations over the $5.