Stampless Cover with large 'ADUANA DE TRANSITO DEL PUERTO DE SAN JUAN' Quetzal Arms official cachet in purple on front & back with AGENCIA POSTAL AMBULANTE No.3 ESCUINTLA Y SAN JOSE cds dated JAN 10 1897 and additional AGENCIA POSTAL AMBULANTE No.1 GIATEMALA Y ESCUINTLA cds dated the same day both on front. Addressed to GUATEMALA CITY with arrival mark on reverse. Cover slightly crumpled in places but an unusual double ambulante.