Cover from a marine in the US Navy with manuscript 'R.T. Pvt. A. Felop. Co. M. 10th Inf, Las Cascadas C.Z. Panama' franked with 1909 2c black & vermilion 'Cordoba' issue of Panama with 'CANAL ZONE' overprint TYPE 2 booklet stamp (SG 41) tied by LAS CASCADAS cds dated FEB 22 1916. Addressed to USA.