Lot
1267 
Envelope, 1887, 1¢ blue on blue, entire with printed Armour & Company of Chicago return address, size 8, knife 38, watermark 12, brilliant color on deeply blue paper, ex-F.P. Brown, "Wanamaker". UPSS No. 893 $27,500. Scott No. U299 $30,000 as mint entire.
ONE OF THE RAREST ENTIRES WITH ONLY TWO KNOWN, THIS BEING THE ONLY EXAMPLE WITH THE "SPECIMEN" OVERPRINT- ONE OF THE KEYS TO A COMPLETE COLLECTION.
Porter Venn records one unused entire, one full corner and two cut squares, as well as the entire with "Specimen" overprint offered here.
Realized: $3,250