This US First Day Cover was issued on 14 July 1953 to commemorate Commodore Perry's negotiations with Japan for trading and coal rights. The cover features a block of four postage stamps and an illustration.
Most of the value changes made in Volume 3 are upward, and many are unusually strong. All totaled, more than 14,000 value changes were made. The stamps of the British and Italian areas lead the way with almost 3,000 value changes. A significant number of changes can also be found in Iran, India, Ireland, Grenada and the German States.
More than 28,000 value changes were made in Volume 5 which covers countries of the world P-SL. Stamps of the Portuguese area lead the way with almost 7,000 value changes followed by Senegal, St. Pierre and Miquelon, Seychelles and San Marino. More than 2,000 value changes were recorded in Poland, Romania and Russia, with increases in the range of 1[Read More]