Cover with manuscript 'Pvt W. E. Brenner, c/o SFC W. E. Brenner, 6893547, Co. F. 33rd Infantry, Ft Kobbe, Canal Zone' return address on front franked with 1934 3c violet (SG 142) tied by COCOLI C.Z. duplex cancel. Addressed to USA.
Cover with manuscript 'Pvt W. E. Brenner, c/o SFC W. E. Brenner, 6893547, Co. F. 33rd Infantry, Ft Kobbe, Canal Zone' return address on front franked with 1934 3c violet (SG 142) tied by COCOLI C.Z. duplex cancel. Addressed to USA.