Lot
752 
"Hardyville A.T., No 12" 1866", manuscript postmark and matching pen stroke cancels on 3¢ pink (U58) to Los Angeles Cal., pencil docketing "54th Cavalry to protect mines" at center, Very Fine, fresh and Very Fine, ex-Birkinbine. Estimate $300 - 400.
As per Birkinbine, this was mailed by Charles Strong, Superintendent of Moss Gold Mines, the letter (no longer present) discussed the 5th Cavalry and protection of the mine against Indian attacks.