{"id":"fs742ha","internal_id":"644c51ce-6ce8-46fc-bc91-7e8ea95b3f98","links":{"img_thumbnail":"https://digital.sciencehistory.org/downloads/deriv/fl1wvk8/thumb_large_2X?disposition=inline","html_self":"https://digital.sciencehistory.org/works/fs742ha"},"title":"Letter from Louise Haas to Otto Haas, December 27, 1912","additional_title":[],"format":["text"],"genre":["Personal correspondence"],"medium":[],"extent":[],"language":["German"],"provenance":"","subject":["Haas, Otto, 1872-1960","Haas, Louise"],"department":"Archives","series_arrangement":["Series II: Letters and Correspondence, 1903-1963"],"rights":"http://rightsstatements.org/vocab/NKC/1.0/","rights_holder":"","digitization_funder":"","file_creator":"Auerbach, Jahna","description":"Letter from Louise Haas to her son Otto Haas (1872-1960), informing him of the death of a family member.\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>Letter from Louise Haas to her son Otto Haas (1872-1960), informing him of the death of a family member.</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":"2026-08-21T18:04:26Z","updated_at":"2026-08-21T18:04:26Z","creator":[{"category":"addressee","value":"Haas, Otto, 1872-1960"},{"category":"author","value":"Haas, Louise"}],"date_of_work":[{"start":"1912-12-27","start_qualifier":"","finish":"","finish_qualifier":"","note":"","formatted":"1912-Dec-27"}],"place":[{"category":"place_of_creation","value":"Germany--Stuttgart"}],"inscription":[],"related_link":[],"additional_credit":[],"physical_container":{"box":"2","folder":"7","volume":"","part":"","page":"","shelfmark":"","reel":"","formatted":"Box 2, Folder 7"}}