1851 2rs blue, usual "1" in concentric circles cancel, margins all around, bright color, v.f., cat. $1000 (Cat No. 1) (Image)

Cat. $1000, Est.$250

1897 8o stationery entire envelope, additionally franked with 8o, 10o and 20o, registered from Lyngby to Danish Consul in Sydney, Australia, overall toning, but with full intact wax seal and arrival pmk, attractive four color franking to an unusual destination (Image)

Est.$500

1931 (2 July) "Columbus" flight from Copenhagen to New York, with appropriate pmks and cachet, v.f. (Image)

Est.$500

1934 (2 May) Bremen-New York flight from Copenhagen, with appropriate pmks and cachet, slight toning, otherwise v.f. (Image)

Est.$250

1932 2nd SAF to Brazil, v.f., with Berlin connecting cachet (Image)

Est.$150