File:America's Highways 1776–1976 - page 444.jpg

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English: Early grading operations were performed with pick, shovel, and animal-drawn equipment. This muledrawn slip scraper hauled very little earth compared to more modern devices.
Date
Source https://en.wikisource.org/wiki/Page:America%27s_Highways_1776%E2%80%931976.djvu/450
Author Federal Highway Administration

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Public domain 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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429273bcd1c39fa31acbab8de3999fec53e5a872

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current13:38, 24 January 2023Thumbnail for version as of 13:38, 24 January 20232,187 × 921 (1.55 MB)Sp1nd01Uploaded a work by Federal Highway Administration from https://en.wikisource.org/wiki/Page:America%27s_Highways_1776%E2%80%931976.djvu/450 with UploadWizard

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