BLUE IN VIGNETTE IS A LIGHTER BLUE THAN SHOWN IN SCAN.
PERFORATIONS ARE FIRM WITH NO SEPARATIONS.
The company initials "G T" perforated on postage stamps (perfins) during the 1920s and 1930s most commonly represent the Guaranty Trust Company of New York.
- Entity: Guaranty Trust Company of New York (a major banking institution that eventually merged to form Morgan Guaranty Trust, and is today part of JPMorgan Chase).
- Purpose: Like other large corporations of the era, the bank punched its unique "G T" pattern into bulk-purchased postage stamps as a security measure to prevent employee theft and unauthorized personal use.
- Usage: While primarily found on United States definitive and commemorative stamps of the 1920s and 1930s, this perfin can also be found on stamps from their international branches, such as their offices in Paris, France.