The Argentina 1935-51 Definitive Series
A Stamp Collecting Blog Dedicated to one of the Most Interesting Series of the 20th Century
Sunday, April 17, 2011
The 40c clay with dark colors of 1948
Although it is not clear from these images, the 40c stamps on these covers are the 40c clay with dark colors of 1948. When viewed at an angle these stamps are shiny.