CCMA is an acronym for The Commission of Conciliation Mediation and Arbitration. The CCMA is an independent body, set up by legislation, which resolves labour disputes by way of conciliation or arbitration. Submitted by Cassandra Andreou, a candidate attorney at Routledge Modise.
1964 was the last year the U.S. stopped minting coins in solid silver. However, there was a series of coins that were sandwiched in silver and maybe an expert coin collector will come on here and cover all those coins and different years they were stamped.
Prior to 1964, from 1873 to 1964, US quarters were composed of 90% silver and 10% copper, with a weight heavier weight of 6.25 grams, or 0.022 ounces. Even earlier, while the U.S. was in its infancy, the federal government passed the Coinage Act of 1792.