Bolivia, 1930, Bolivia to Brazil L.A.B. First Flight, most attractive group of four almost identical covers, each franked with 6 airmail issues tied by 30 Jul 30 La Paz cds, addressed to Rio de Janeiro, with red, yellow & green "Lloyd Aereo Boliviano" etiquette tied by double circle Condor cds, said to have had a total printing of only 200 for use only on this flight; cover with purple Lloyd Condor flight cachet; also included are 2 extra etiquettes; unusual opportunity, Very Fine and scarce. Estimate  $150 - 200. $0 (Image)