United States #C42-44. 1949 Air post U.P.U. set, complete set of 3 varieties. All in fine mint condition, never hinged.
1949 U.S. Air Mail Universal Postal Union (UPU) Mint Condition Stamp Set
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![1949 U.S. Air Mail Universal Postal Union (UPU) Mint Condition Stamp Set 1949 U.S. Air Mail Universal Postal Union (UPU) Mint Condition Stamp Set](https://cdn11.bigcommerce.com/s-3uzr4m6j7l/images/stencil/500x659/products/3167/4668/C42-44M__28513.1674832410.jpg?c=2)
1949 U.S. Air Mail Universal Postal Union (UPU) Mint Condition Stamp Set
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