U.S. #C33
1947 5¢ DC-4 Skymaster
Small Format
Issue Date: March 26, 1947
City: Washington, DC
Quantity: 9971,903,700
Printed By: Bureau of Engraving and Printing
Printing Method: Rotary press printing
Perforations: 10 ½ X 11
Color: Carmine
This stamp was issued to replace the previous airmail stamp. The post office wanted to provide a stamp in a size more suitable for coils, stamp vending machines, and booklets of stamps.
First Airmail Coil Stamp
1948 5¢ DC-4 Skymaster Horizontal Coil
US #C37 – America’s first Airmail coil stamp
The first US Airmail coil stamp was issued on January 15, 1948, in Washington, DC. Only a few more coil stamps would be issued over the next 30 years, but the DC-4 SkyMaster would appear on more than a dozen postal items.
The DC-4 SkyMaster made its maiden flight on February 14, 1942. The aircraft quickly played a critical role in the Allied war effort and the Berlin Airlift of 1948-49. The SkyMaster was also widely used in commercial aviation and to deliver airmail.