Lot
253 
1861 (Jul. 31) Ayr, Scotland to Geneva, Mich., cover bearing G.B. 1856 1s green (SG 19) plate-margin single tied by "Ayr, JY 31, 61" duplex with "27" barred numeral "27" duplex cancel, red London "21/Cents" credit handstamp to U.S., carried on Allan Line Nova Scotian from Londonderry Aug. 8th to Quebec arriving Aug. 13th, by rail to Detroit where neat strike of red "Detroit Am. Pkt., 24 Paid', Aug 16" exchange cds struck, Very Fine and scarce Detroit exchange office cds. Estimate $200 - 300.
This Detroit exchange office cds was used from March 1860 until November 1867 (See Allen & Littauer, Chronicle 244, 2014).