Cover franked with 1930 1c on 15p black 'Opening of Los Altos Electric Railway from San Felipe to Quezaltenango' issue, 1930 2c black & mauve 'Opening of Los Altos Electric Railway' issue and 1927 1c olive green TAX issue (SG 246, 253 & 223) tied by GUATEMALA CITY cds's dated 9 JUL 1931. Addressed to USA with transit marks on reverse. A scarce issue used on cover.