"Fifty new engine test blocks at the Air Service Mechanics' School in Kelly Field, San Antonio, Texas. These test blocks were almost completed at the time of the armistice but are now idle due to a misunderstanding by the contractor. The blocks are well designed and located, comparing favorably to the best in the country."

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Size: 8377px × 5643px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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