(Colorado) Fort Sedgwick, Col, Jun 12. Cds with manuscript date and cork canceled 1861, 3¢ rose on cover to Newton, Mass., indistinct name and "Co B 4th U.S. Infantry" pencil docket at left, postmark dated 1867 in pencil; sideflap replaced and minor corner wear, F.-V.F.
Scott No. 65; Estimate $150 - 200.

The Fort Sedgwick Post Office operated from 1866 to 1869 only. Est. $150-200 (Image)

Est. $150-200

(Dakota Territory) Fort Abercrombie, D T, May 25. Cds and 1861, 3¢ rose with target cancel on triangular cover to Fiskeville, R.I., Very Fine and unusual.
Scott No. 65; Estimate $200 - 300. Est. $200-300 (Image)

Est. $200-300

(Dakota Territory) Fort Laramie, Daka., Nov 30, 67. Intensely bold cds and 1861, 3¢ rose tied by equally bold target killer on cover to New York City, originally legal size and reduced on three sides (3½x6¼" actual size), Very Fine appearance, a desirable fort postmark with year date from the year before Wyoming Territory was created.
Scott No. 65; Estimate $100 - 150.

The Fort Laramie Post Office was transferred from the original Idaho Territory to a revised Dakota Territory when Montana Territory was created in 1864. Est. $100-150 (Image)

Est. $100-150