Lot
1600 
Navy Dept., 1873, 2¢ ultramarine, tied by red "Washington, D.C., Feb 10" cds and cork duplex on locally addressed Nautical Almanac Office imprint cover; light cover water staining, F.-V.F., only a few examples known on cover canceled in red, with only four examples recorded in the 2002 Campbell census. Scott No. O36 Estimate $300 - 400.
Realized: $475