Bidspirit auction | Liberia

Liberia - 1958, President Tubman's visits to Europe, perforated proofs of postage 5c x3 and air post 10c, 15c x3, complete set of seven with design printed on gum side and flags on front, bottom left corner sheet margin blocks of four, full OG, NH, VF, Est. $300-$400, Scott #368-7, C114-17