Word: silverless
(lookup in dictionary)
(lookup stats)
Dates: during 1960-1969
Sort By: most recent first
(reverse)
Since late last year, the silver-short U.S. has been forced to mint silverless "sandwich" quarters and dimes containing a central layer of copper between two thin slices of copper-nickel alloy. Now another Government agency has suggested a more direct solution: find more silver. To aid prospectors, U.S. Geological Survey scientists have designed and successfully tested a "silver snooper," a device capable of locating silver deposits buried as deep as three feet below the ground. By shooting a stream of neutrons into the earth, the snooper turns the silver temporarily radioactive, causing it literally to signal its presence...
...mints (Philadelphia and Denver). A far richer windfall for the Government, however, is the Coinage Act of 1965, passed by Congress in July to cut the multimillion-ounce yearly drain from the U.S.'s dwindling silver supply.* The law stipulates that all new dimes and quarters must be silverless and the silver content of half dollars trimmed from...
| 1 |