After more than 486 boxes of nickels, I finally found
my first Henning Nickel! It weighs 5.2 gram. The
Letter R on the reverse has the chracteristic loop. HH
As far as I know, the looped "R" on reverse is on 39, 46, 47, and 53. But not every Henning Nickel has a looped "R". Of course, most people know about the no "P" 44 Henning.