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.
All of this takes place on a curling sheet that is basically a basketball court and a half in length - 138 feet. So especially early on in a shot, their voices need to travel a pretty good distance. Now add in the fact that the vast majority of curling matches don't take place in an arena, but in a smaller, enclosed room that echos a great deal.