From: utzoo!decvax!harpo!ihps3!houxi!houxq!dmh Newsgroups: net.misc Title: Re: Pennies (from wherever) Article-I.D.: houxq.211 Posted: Thu Sep 23 12:20:34 1982 Received: Mon Sep 27 20:26:56 1982 Some 82 pennies have 3.5g mass , these are copper. some have 3.2g mass, these are zink cored. I can not tell by the ring when they are dropped. From the 20 i have collected and weighed, it seem that about 10% are zink cored. Dave Holander