Two Navy Great Lakes Cruise Key Chains from 1981 and 1982. Unknown Material but both are Metal. Both Fobs are About 1 1/4 Inches in Diameter. The Fronts Show the Word Navy and Year with an Illustration of a Ship or Boat Number 763. The Great Lakes are in the Background. The Back shows An Adventure, Great Lakes Cruises and Telephone Numbers. The 1981 Key Chain is a Steel Colored Metal, The 1982 is a Brass Color.