Reply to Thread

Message:: [QUOTE="1970 Silver Art, post: 1619849, member: 18828"]What was the weight?  What is the silver art bar? It depends on the silver art bars but it is not unusual for several silver art bars from the '70's to be underweight or overweight.  I know that you said a "few grams" but the weight tolerance will typically be +/- 0.7.  In other words that 1-oz '70's silver art bar could weigh as less as 30.4 grams and as much 31.8.  However, there were some Hamilton Mint bars and some Mother Lode bars that weighed as much as 32.5 grams and were still ok after doing ring test.  The '70's silver art bars that were minted by Madison Mint, Colonial Mint (certain ones) and Ceeco Mint seem to have bars that were underweight by as much as .5 grams (usually between 30.5 and 31.0 grams if underweight).   Some of the '70's silver art bars that were "too thick" to fit in an air-tite included some World Wide Mint Coca-Cola bars and some Colonial Mint bars.  You also have to keep in consideration that not all of them that were minted in the '70's were a "standard size" and they did not have "standard" dimensions like most of them probably do now.  There is really no idea of how thick they should be or how long that they should be except that they were concentrating on it weighing a troy-oz and sometimes they were off since apparently the quality control during the '70's was probably not that great.[/QUOTE]