1866, 15¢ black. Intense shade, in combination with 1861, 3¢ rose, horizontal pair tied by large segmented cork cancels, red "New York Paid Apr. 12" credit cds on 1867 cover to Malaga, Spain, red French transits including boxed "P.D." handstamp, Spanish red "4R" due handstamp, receiving backstamp; left 3¢ with small corner creases, otherwise Very Fine, an unusual combination of stamps paying the 21¢ rate to Spain via French Mail. Scott No. 77+65  Estimate $750 - 1,000. $0 (Image)

1866, 15¢ black. Single usage on 3 covers; a 1867 cover Boston, Mass. to Paris, France, and forwarded back to Boston, depreciated currency markings, a 1867 cover to Paris, France, then forwarded to Lucerne, Switzerland, and forwarded again to Paris, with a plethora of markings, and a 1867 cover to Paris, France, and forwarded to Lucerne, Switzerland sent via Philadelphia exchange office; some cover edge wear, F.-V.F. Scott No. 77  Estimate $500 - 750. $0 (Image)

1866, 15¢ black. Tied by grid cancel on mourning cover to Paris, France, red "New York, Paid 12, Sep 18" cds and Calais entry postmark, Very Fine. Scott No. 77  $250. $0 (Image)

1866, 15¢ black. Tied by "Denver, Col., Aug 19" cds and target duplex on cover to Paris, France, red "Chicago, Paid 6" exchange handstamp and blue Calais transit additionally tying stamp; small cover tear at top and light central tone band, otherwise Very Fine, a scarce territorial usage. Scott No. 77  Estimate $200 - 300. $0 (Image)

1866, 15¢ black. Grid canceled and tied by blue French entry cds on cover to Paris, France to a surgeon aboard the U.S. ship Canandaigua, purple "Philadelphia, 12, Dec 24" exchange cds, Very Fine; with 1989 P.F. certificate. Scott No. 77  Estimate $150 - 200. $0 (Image)

1866, 15¢ black. On 1867 cover to Paris, France, with Buffalo, N.Y. cds with grid postmark, boxed "Short Paid" & New York "6 Sep 18" integral cds, manuscript "16" due marking and red transit, black Paris receiver on reverse, F.-V.F. and attractive. Scott No. 77  $250. $0 (Image)