{"id":"nkpv3ed","internal_id":"ac580ced-4335-4c93-a4ca-1ed183efc96f","links":{"img_thumbnail":"https://digital.sciencehistory.org/downloads/deriv/1mpf314/thumb_large_2X?disposition=inline","html_self":"https://digital.sciencehistory.org/works/nkpv3ed"},"title":"G. Siegle & Co. employment contracts for Otto Haas","additional_title":[],"format":["text"],"genre":["Records (Documents)"],"medium":[],"extent":[],"language":["German"],"provenance":"","subject":["Haas, Otto, 1872-1960","G. Siegle & Co.","Labor contract"],"department":"Archives","series_arrangement":["Series I. Biographical and Family History, 1870-2008, undated"],"rights":"http://creativecommons.org/publicdomain/mark/1.0/","rights_holder":"","digitization_funder":"","file_creator":"Auerbach, Jahna","description":"Two G. Siegle & Co. employment contracts for Otto Haas (1872-1960).\n\nOtto Haas was the co-founder of Rohm & Haas, best known for manufacturing Plexiglas (acrylic glass), as well as foundational chemical ingredients used in latex paints, electronic devices, building materials, and agricultural products.","description_html":"<p>Two G. Siegle &amp; Co. employment contracts for Otto Haas (1872-1960).</p>\n\n<p>Otto Haas was the co-founder of Rohm &amp; Haas, best known for manufacturing Plexiglas (acrylic glass), as well as foundational chemical ingredients used in latex paints, electronic devices, building materials, and agricultural products.</p>","published_at":"2026-08-20T16:27:41Z","updated_at":"2026-08-20T16:27:41Z","creator":[{"category":"creator_of_work","value":"G. Siegle & Co."}],"date_of_work":[{"start":"1898-06","start_qualifier":"","finish":"1898-07","finish_qualifier":"","note":"","formatted":"1898-Jun – 1898-Jul"}],"place":[{"category":"place_of_creation","value":"Germany--Stuttgart"}],"inscription":[],"related_link":[],"additional_credit":[],"physical_container":{"box":"1","folder":"12","volume":"","part":"","page":"","shelfmark":"","reel":"","formatted":"Box 1, Folder 12"}}