"Flying Clothespins", clear strike in brown ties well centered 10¢ brown (150), bright color, on immaculate 1872 cover to Paris, France, endorsed "pr S.S. Nevada via England", red "New York 'Paid 6' Mar 13" exchange cds, red London (3.25.72) transit cds and matching oval "PD" handstamp, Calais (3.26) entry cds, Paris (3.26) arrival backstamp, Extremely Fine and choice use, ex-Beals, Weiss, Mercedes, Andromeda, Richards. Weiss No. TR-C7  Estimate $400 - 600. A SCARCE NYFM STRIKE IN BROWN, CAUSED BY A MIXING OF BLACK AND SUPPLEMENTARY MAIL RED CANCELING INK. $0 (Image)

"Flying Clothespins", two strikes tie two 2¢ red brown (146) singles, along with four 3¢ green (147) singles, tied by red "New York 'Paid 6' Mar 30" exchange cds, on blue 1872 folded letter to France, additional cds below, light London transit and oval "PD" handstamp, Calais (4.11.72) entry cds, Angouleme (4.11) arrival cds; some aging, Fine. Weiss No. TR-C7  Estimate $300 - 400. A VERY UNUSUAL NYFM USE WITH STAMPS CANCELLED BY TWO DIFFERENT DEVICES. This cover is discussed in an article by Roger Curran in the February 2009 USCC News. It shows how postal clerks handled mail in the Foreign Mail Department, the 2¢ stamps were cancelled first, and then the exchange office c.d.s. applied later when dispatched. The 16¢ postage prepays the second weight progression for 10-15 grams. $0 (Image)