Color printed tri-fold brochure Promotional brochure for 1937 version of exposition with Aquacade performer on cover Promotional, advertising brochure Show moreColor printed tri-fold brochure Promotional brochure for 1937 version of exposition with Aquacade performer on cover Promotional, advertising brochure for steel making company no specific mention of Great Lakes Exposition Great Lakes Exposition of 1936 and 1937 Show less