Cover franked with 1922 2c carmine and 1929 1c blackish green (SG 467 & 617) tied by fine LIMAY cds. Sent airmail via LEON with 1930 15c on 25c blackish green AIR issue applied and cancelled with LEON cds. Addressed to USA with boxed CORREO AEREO MANAGUA marking applied in transit. Small P.O.s often did not stock airmail stamps and mail was forwarded with payment to the larger towns to be franked and put into the airmail system.