Unpaid envelope from Reykjavik 13 May 1894 to Amsterdam, The Netherlands. Postmarked LAP ‘REYKJAVIK 13/5’ and circle ‘T’ and charged in pencil ‘25’ Dutch cent with postage due stamp 25 CENT TE BETALEN, and cancelled with ‘AMSTERDAM 20 MEY 94’, backstamped 1-ring ’21 P / EDINBURGH MY18 94’ and receiving cds ‘AMSTERDAM 19 MEI 94 10-12N’. As far as I’m aware, this is the earliest recorded letter from Iceland with a foreign postage due stamp, a great postal history rarity.