1 Is transparent, easily formed and most suitable for window glass (see flat glass). 2  It has a high thermal expansion and poor resistance to heat (500â600 Â°C). 3  It is used for windows, some low temperature incandescent light bulbs, and tableware.
Carson City Mint. The Carson City Mint was a branch of the United States Mint in Carson City, Nevada. It primarily minted low numbers of silver coins; however, gold was also minted in greater numbers. The mint was in operation for about 19 years.
Canadian Maple Leaf â Silver, minted by the Royal Canadian Mint. This Bullion Coin was introduced in 1988; the obverse has a Portrait of Queen Elizabeth II, with the Maple Leaf on the reverse. It carries a denomination of $50, $20, $10, $5 and $2.5 Canadian Dollar value.They are struck 1oz., Â½ oz.hey are struck with a $1 face value. Weight is listed as 31.103 grams; with a composition of .999 pure silver. This coin has a Diameter of 40.6 mm with a reeded edge. They are minted in San Francisco, Philadelphia and West Point.