5c blue 'Momotombo' postal stationery envelope (H&G B45) used with superb strike of OFICINA TELEGRAFICA DE LA LIBERTAD oval cancel dated DEC 19 1904. Addressed to MANAGUA with small oval CARTERO No. 4 - 5 P.M. MANAGUA marking and two strikes of small 'TARDE' marking on front and JUIGALPA oval transit mark on reverse. Trimmed approx 1cm at left but a scarce origination & cancel.