A handful of nice precision machining business images I found:
Image from web page 370 of “The commercial apple market of North America” (1921)
Image by Internet Archive Book Photos
Identifier: commercialapplei00folg
Title: The industrial apple sector of North America
Year: 1921 (1920s)
Authors: Folger, John Clifford, 1890- Thomson, Samuel Mable, 1891- joint author
Subjects: Apples
Publisher: New York, The Macmillan company
Contributing Library: The Library of Congress
Digitizing Sponsor: Sloan Foundation
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Plate XIX.— Packing the fruit. 1. Well packed boxes of applesshowing different styles of packing utilised on big and tiny fruit.2. Very good example of ring tailing. 3. An superb face produced with2%-inch apples. four. Trucks have largely supplanted this methodof hauling packed boxes in the Wenatchee Valley. Handling the Crop 307 Mechanical sizer (Plate XX) The sizing machine has grow to be such an critical fac-tor in the handling of each the industrial barreled andboxed apple crop as to need separate treatment. Itseems apparent that this labor-saving device is destined toplay an increasingly crucial portion in the handling ofcommercial apples. The chief criticism offered against itis the attending danger of careless handling, which isbeing quickly eliminated by higher mechanical perfec-tion and judicious operation. A single of the greatest ad-vantages of the mechanical grader is sometimes over-looked. It lies in the precision with which the fruit perhaps handled. A machine appropriately fed insures a st
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