Title: Philately Week Special 
( View Souvenir Sheet)
Stamp Serial#
2257a ssm 
Date of Issue
250 won 
Korea's first stamp (5-Mun) 
Lee Gi-seog 
Image Area
55mm x 30mm
(triangle stamp) 
Sheet Composition
5 x 4 
White Unwatermarked 
Printing process
and colors
Photogravure, five colors
(Photochromic stamp) 
Korea Minting and Security Printing Corporation 
The 2007 Korean Philatelic Exhibition will be held from August 1 to 5, 2007 at the Forth Exhibition Room, Asia Pacific Hall, COEX.

At this Exhibition, approximately 500 frames of excellent stamp exhibits and invited stamp exhibits will be displayed. To celebrate the holding of the PHILAKOREA 2009 24th Asian International Stamp Exhibition in Seoul, the PHILAKOREA 2009 emblem will be announced. In addition, to facilitate the sharing and mutual understanding of inter-Asian culture, the "Asia Stamp Culture Room" where visitors can experience various Asian countries through stamps and photographs will be operated. The "Korea Stamp Culture Room" will also be a new feature, introducing Korea's traditional daily life culture, together with stamps, photos and related objects. At the "Living Things Stamp Experience Room" designed for young stamp-collectors, animal and plant specimen will be displayed together with stamps, with the program being named "Fascinating Biology that Can be Learned from Stamps". Together with these elements, other interesting stamp-based events will be operated through the "Cyber Stamp Culture Room," "History of Stamp & Currency Room," "Original Drawings of Stamps Exhibition Room," "Stamp-Collecting & Letter- Writing Culture Room," a musical puppet show, magic show, etc.

This year's special stamp issued to commemorate the "Philately Week" will take the form of "stamps in a stamp." The inner stamps are composed of a "5-Mun" unit stamp and a "10-Mun" unit stamp (Mun used to be a Korean currency unit), two stamps that were actually issued and used among the "Mun unit" series stamps, Korea's first stamps. In addition, this special stamp will be a photochromic stamp: a light-sensitive pigment which changes color when exposed to ultraviolet light is capsulated and applied to the stamp printing: The letter ?? on the two sides of the "5-Mun" unit stamp and the letter '?? on the two sides of the "10-Mun" unit stamp were printed with light-sensitive ink. As a result, the letters, which normally have no color, turn red when exposed to ultraviolet-containing sunlight. This special stamp will provide fun and delight to stamp collectors.