Detroit "Steam Boat", fancy scroll handstamp on cover addressed to Norwich Vt. bearing 3Ā¢ dull red (11A), four margins, tied by "Detroit Mich. Jul 5" cds; minor paper loss on flap, Very Fine and choice example, ex-Tito, George Kramer. EstimateĀ $400 - 600. The Great Lake port post offices used Steam Boat handstamps on arriving mails in various designs, that for Detroit in the form of a ribbon. The use of such handstamps ceased by the mid 1860s. $0 (Image)