File:America's Highways 1776–1976 - page 446a.jpg
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Size of this preview: 458 × 599 pixels. Other resolutions: 183 × 240 pixels | 367 × 480 pixels | 587 × 768 pixels | 1,231 × 1,611 pixels.
Original file (1,231 × 1,611 pixels, file size: 1.05 MB, MIME type: image/jpeg)
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Summary
| Description |
English: First graders ever used on highway construction work. Fixed with adjustable blades to provide the desired slope and section, graders were suited for fine grading and shaping. |
| Date | |
| Source | https://en.wikisource.org/wiki/Page:America%27s_Highways_1776%E2%80%931976.djvu/452 |
| Author | Federal Highway Administration |
Licensing
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This image is a work of a United States Department of Transportation employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain. | 
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:57, 25 January 2023 | | 1,231 × 1,611 (1.05 MB) | Sp1nd01 | Uploaded a work by Federal Highway Administration from https://en.wikisource.org/wiki/Page:America%27s_Highways_1776%E2%80%931976.djvu/452 with UploadWizard |
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