Bidspirit auction | Cuba

Cuba - 1960, National Philatelic Exhibition, blue overprint on imperforate souvenir sheet containing four 10c brown, commemorating Centenary of the first postage stamp, 11 examples, commemorative booklet is enclosed, all with full OG, NH (9) or VLH, VF, C.v. $385, Est. $100-$150, Scott #C211