A few good machine components makers photos I located:
1930s typewriter
Image by hugovk
This typewrite was created by Olympia Büromaschinenwerke A.G. Erfurt, who also created Enigma Machines such as the a single at Royal Naval Museum at Portsmouth.
www.royalnavalmuseum.org/CuratorschoiceMay05.htm
"All of the typewriter makers in Germany suffered to some extent from the devastation of the Second Planet War. Most had been converted, in component or in total, to armaments production, and had been targeted throughout the conflict. All re-tooled and started making typewriters again as quickly as possible.
When Germany was split following the war, West Germany was in posession of Olympia, Adler and Triumph East Germany was in posession of portion of Olympia (which was renamed Optima Buromaschinenwerke in 1950), Groma, the Rheinmetall plant, and the former Seidel & Naumann plant which had made Erika machines prewar, and other people. The East, like the West, immediately made plans to restore its manufacturing base to get cash flowing, and typewriters have been naturally included as it was effectively recognized that there was an extreme shortage of these machines everywhere."
www.geocities.com/wbd641/germany3.html
Making sails at Ratsey’s (LOC)
Image by The Library of Congress
Bain News Service,, publisher.
Making sails at Ratsey’s
[in between ca. 1910 and ca. 1915]
1 unfavorable : glass 5 x 7 in. or smaller sized.
Notes:
Title from data provided by the Bain News Service on the adverse.
Photo most likely shows the American branch of the English boat sail manufacturer, Ratseys and Lapthorn, established in 1902 on City Island, New York City. (Source: Flickr Commons project, 2010 and Sports Illustrated, May 19, 1958)
Forms part of: George Grantham Bain Collection (Library of Congress).
Format: Glass negatives.
Rights Information: No identified restrictions on publication.
Repository: Library of Congress, Prints and Photographs Division, Washington, D.C. 20540 USA, hdl.loc.gov/loc.pnp/pp.print
Basic info about the Bain Collection is available at hdl.loc.gov/loc.pnp/pp.ggbain
Greater resolution image is accessible (Persistent URL): hdl.loc.gov/loc.pnp/ggbain.16208
Get in touch with Number: LC-B2- 3087-10