Talmud (Rodkinson Edition) — Book 2…
“ When a man paid his half-shekel in Jerusalem, he would go to the Temple and throw his half-shekel into the chest marked new shekalim. Into the chest marked old shekalim, such as had not given pledges for the payment of the Shekalim, and came voluntarily to pay same, would throw their half-shekel. One who wished to donate money for specific purposes, e.g., for bird-offerings, etc., would deposit the money in the respectively marked chests. ”
