The only US nickels that contained any silver were made from late 1942 through 1945. The silver-alloy coins have a large mint mark above Monticello's dome instead of a small mark to the side. The letter P was used for Philadelphia issues for the first time on any coin.
Dimensions. A curling rink should be 150 feet long and have a maximum width of 16 feet, 5 inches. If a facility is too small to hold rink(s) with these dimensions, a rink can be a minimum of 146 feet long and 14 feet, 6 inches wide. The perimeter of the rink can be marked by raised barriers or by lines drawn on the ice.f a facility is too small to hold rink(s) with these dimensions, a rink can be a minimum of 146 feet long and 14 feet, 6 inches wide.
A roller rink is a hard surface usually consisting of Hardwood, Rollerboard or Concrete used for roller skating or inline skating. This includes roller hockey, speed skating, roller derby, and individual recreational skating.Roller rinks can be located in an indoor or outdoor facility. Most skating center facilities range anywhere from under 14,000 square feet to more than 21,000 square feet.ccording to data collected in 2004 a Roller Skating Rink owner can expect a 5% growth rate in their first year of business. Owners must have appropriate permits and licenses from the city in order to open the rink.