(1869-86 Cincinnati Industrial Exposition) Cin'ti. O., Exposition Sta. Bold postmark (Bomar C82-01) on cover franked with 3¢ Bank Note, cancelled by segmented cork, cover reduced at right, F.-V.F., a very nice usage of this rare postmark during the 10th Cincinnati Industrial Exposition, only 3 recorded. Estimate  $300 - 400. $0 (Image)