Image: First Transcontinental US Air Mail under Contract 1927
Size of this preview: 800 × 472 pixels. Other resolutions: 320 × 189 pixels | 1,188 × 701 pixels.
Original image (1,188 × 701 pixels, file size: 1.07 MB, MIME type: image/jpeg)
Description: Cover carried from San Francisco to Chicago on the first Transcontinental US Air Mail under Contract. July 1, 1927
Title: First Transcontinental US Air Mail under Contract 1927
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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