^Lot 353 Mixed Aviation Proof Stock Certificates

DE. 1970-1980's. 5 different proof stock certificates, odd shares. All printed on white paper. 1) US Airways Group, Inc., with vignette of winged Mercury and jet plane. Blue border. 2) Continental Airlines, Inc., with vignette of woman leaning against globe and jet airplane. Class B common stock, blue border. 3) Continental Airlines, Inc., with vignette of woman leaning against globe and jet airplane. Class A common stock, tan border. 4) UAL Corporation, with allegorical figure of Mercury with winged wheel. Green border. 5) Midwest Express Holdings, inc. with vignette of woman leaning against globe and jet airplane. Common stock, blue border. All are either unique or only 2 found as proofs in archive (i.e., all very rare). ABNC. XF.