(5) 1933 Century of Progress covers, ea w/ attractive cachet, (3) from Chicago, others Akron and Miami, faint flap mark on one, gen F-VF (Image)

Est. $300-400 LE

(4) Diff flown C18 Century of Progress covers, ea mailed 10/4 from NYC, franked w/ one stamp (Ger to Brazil), 2 stamps (Ger to Miami), 3 stamps (Ger to Chicago) and 4 stamps (round trip); VF (Image)

Est. $350-450 SE

(6) Diff Century of Progress covers, 10/2 NYC for Ger to Brazil; 10/3 NYC not typical date, Ger to Brazil; 10/4 Akron to Ger; 10/5 Washington DC FDC; 10/6 Miami to Chicago; 10/7 Chicago to Akron; all on standard airmail envelopes w/ proper cachets, gen F-VF+ (Image)

Est. $400-500 LE