"Head-Quarters, Baxter's Fire Zouaves", Seventy-Second Regiment, Pennsylvania Volunteers, patriotic cover depicting Colonel Baxter, Upham imprint on reverse, franked with 3c rose and tied by oval Adamstown datestamp (December 31, 1861), to Philadelphia, mount adhesions to reverse and piece torn from back flap, some light edge staining, a scarce patriotic. (Weiss PM-36a, Walcott L-452U).