50c violet 'Las Vacas Railway Bridge' postal stationery card with 'AVISO DE RECEPCION' & 'SERVICIO DE CORREOS' overprint in black and AR form printed on reverse (H&G N1, Goodman #PC16) used with added 1929 1c sepia (SG 228) tied by 'Wavy Lines' cancel with POSTA LOCAL GUATEMALA cds with 'POSTA LOCAL DE LA CIUDAD DE GUATEMALA slogan attached. Addressed locally within GUATEMALA CITY with CENTRAL CERTIFICADOS GUATEMALA cds dated 6 ABR 1933 on reverse. A rare item.