(Route 12717) Steamer Illinois, Summer Sailing Schedule of 1962, printed summer sailing schedule for the Cleveland, Detroit & Lake Superior Line, on reverse of orange buff cover bearing 3¢ rose (65) tied by blue "Ontonagon Mich. Jun 25" cds and addressed to Haddam Conn., carried on Route 12717 to Cleveland for transfer to the rails east; flap tears, front with hinge remnants and tape stain, Fine, Illustrated in Milgram on page 637. Milgram No. 637  Estimate $200 - 300. $0 (Image)