Cover from IPALA, AMATILLO with manuscript return address at top left franked with 1972 1c blue & light blue and 1973 7c new blue (SG 929 & 974) tied by two strikes of straight line ZACAPA - ANGIATU AMBULANTE POSTAL 1 marking in blue. Addressed to GUATEMALA CITY with arrival cds on reverse. Scarce marking this line was closed in 1982.