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semipostal

1936, Dec 6 Austrian inventors unwmk p. 12.5 (6 stamps)

-	12+12g		Josef Ressel & screw propeller
-	24+24g	redvio	Carl von Ghega 1802-60 Semmeringbahn
-	30+30g	redpur	Joseph Werndl
-	40+40g	blblk	Carl Auer von Welsbach
-	60+60g	viobl	Robert von Lieben
-	64+64g	dkgrn	Viktor Kaplan

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