10 Pfg crown / eagle with overprint \"marshal islands\", so-called \"Berlin initial printing issue\", from Empire Postal Ministry to exchange purposes produced, in perfect condition mint never hinged, a hardly once brand on offer, superb in every respect (choice copy), pencil note from Albert Friedemann and photo expertize R. Steuer BPP: \"the scarce copy is mint never hinged and qualitatively complete flawless. \", Michel approximate 1.500.-