OK, I had to look it up. I thought it might be that the alloys had changed, but they have not. A nickel weighs 5 grams and is composed of 75% copper and 25% nickel. Been that way since 1866 except during WWII, when they used a copper/silver/manganese mix. So a modern nickel should trip the mechanism just as well as an earlier nickel.
Loran On Nov 9, 2006, at 2:42 PM, Andrew Baron wrote: > Well, given a uniform diameter and consistent type of metal used, > thickness and weight would be closely related, and the ultimate > effect of tripping the coin mech would rely on the thickness to some > extent, wouldn't it? > > Andy > > On Nov 9, 2006, at 3:30 PM, Loran Hughes wrote: > >> It isn't so much the thickness of the coin as the weight of the coin >> needed to trip the mechanism. >> >> Loran
