Men and women posing with cannon, Mackinac Island , 1912 S.A.E. semi-annual meeting
View of men and women posing with a cannon on Mackinac Island during 1912 semi-annual meeting of the S.A.E. Wooden-frame house in background. Participants traveled from Detroit to Mackinac Island. Handwritten on back: "Events--S.A.E. trip, 1912. Society Automobile Engineers trip, 1912."