(Walla Walla) Walla Walla, W.T./Dec. 15. Straight line postmark (type 2) tying 1861 10¢ green on cover to Chillicothe, Mo., cover forwarded to Warrenton with endorsement "Soldiers Letter/Fwd Free"; adhesive additionally tied by forwarding post office, reduced at right, Very Fine, interesting Civil War usage. Estimate  $200 - 300. $0 (Image)