Lot
1391 
1938, 11¢ Presidential, tied by "Clifton N.J., Aug 22, 1939" machine cancel on cover to Poland, endorsed "by air mail" and blue "Par Avion by Air Mail" form 2978 label affixed, Lwow (9.1) arrival backstamp, Very Fine and exceptionally rare solo use. Scott No. 816 Estimate $1,000 - 1,500.
ONE OF THE RAREST PREXIE ISSUE SOLO USAGES PAYING AN EXACT RATE, THE 5¢ UPU SURFACE RATE PLUS AIRMAIL SURCHARGE WITHIN EUROPE.
THIS COVER WAS BACKSTAMPED THE DAY THAT GERMANY INVADED POLAND, MARKING THE START OF WWII.
This cover was prepaid 11¢ for the single 5¢ UPU surface rate for up to one ounce plus double the 3¢ per ½ oz. air mail surcharge within Europe.
Realized: $1,200