[caption id="attachment_5663" align="alignleft" width="300"] 1913 Manufacturing 25c[/caption]
This parcel post stamp shows a steel plant.
1962 Capitol 8c Carmine
These 8c airmail stamps show a jet airliner over the Capitol building.
1947 Statue of Liberty 15c Bright Blue Green
[caption id="attachment_5208" align="alignleft" width="300"] 1947 Statue of Liberty 15c[/caption]
This 15c airmail stamp shows a Lockheed Constella
1947 Pan American Union 10c Black
[caption id="attachment_5205" align="alignleft" width="300"] 1947 Pan American Union 10c[/caption]
This 10c airmail stamp shows a Martin 2-0-2 flyi
1983 Metropolitan Opera 20c Yellow and Maroon
[caption id="attachment_4991" align="alignleft" width="300"] 1983 Metropolitan Opera 20c[/caption]
This stamp commemorates the Metropolitan Opera (