Waseca Centennial Souvenir Coin. Material: metal. Size" 1 3/4" diameter. Description: gold metal - one hundred imitation gold coins (five kept) - inscribed on one side: "Waseca, Minn. 1868-1968. First 100 Years. For an Hour or a Lifetime" - inscribed on reverse: "Souvenir - Half-dollar redeemable in trade at Centennial Headquarters, Waseca, Minnesota, on or before June 17, 1968".