Bidspirit auction | Liechtenstein - Semi-Postal issues

Liechtenstein - Semi-Postal issues - 1936, 2nd Vaduz Philatelic Exhibition, imperforated souvenir sheet of 20(rp) red x2 and 30rp dark ultra x2, five examples, post office fresh quality, full OG, NH, VF, C.v. $300, SBK W14, C.v. CHF500, Sc. #B14