1918, stamp booklet 2 coronas, imperial crown / Franz Joseph, stamp booklet panes 3 - 5 and 7 between five unprinted silk paper leaflets, mint never hinged, faultless condition, a value insignificant affixed spots, rare, photo expertize Roger Soecknick V+?B \"genuine and immaculate\" and photo expertize MMag Peter Stastny VPEX \"genuine and immaculate\", Michel 3.900.-