Airmail cover franked with block of four 1930 1c on 3p deep green 'Airmail' SURCHARGE issue plus 1927 1c olive green TAX issue (SG 255 & 223) tied by SERVICIO INTERIOR GUATEMALA cancel dated 17 JUN 1935. Flown on the GUATEMALA CITY - LA TINTA first flight with boxed 'PRIMER VUELO POSTAL GUATEMALA - LA TINTA A.V.' cachet in purple on front along with LA TINTA arrival mark dated the next day. An uncommon flight. (Muller #54a, Goodman #AM34a)