The volunteer Tatras Mountain rescue service was established in the Tatra Mountains in 1909. This coin was struch to mark the 100th Anniversary of the all-volunteer service This proof legal tender 10 Zlotych coin was struck by the Polish Mint (Mennica Polska) in 2009 from 14.14 grams of .925 silver for an Actual Silver Weight (ASW) of .4205 ounces.