{"nrhp_refnum":"71000081","name":"Old Schwamb Mill","other_names":[],"category":"building","location":{"address":"17 Mill Lane and 29 Lowell St.","address_restricted":false,"city":"Arlington","county":"Middlesex County","state":"MA","lat":42.425088075000076,"lon":-71.17783308799994,"geom_source":"nps_gis"},"listed_date":"1971-10-07","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry"],"significance_levels":["national"],"summary":{"what_it_is":"A three-building wood-frame mill complex on a one and one-half acre site beside Mill Brook at 17 Mill Lane and 29 Lowell Street, Arlington, Massachusetts. The present mill dates from 1860, rebuilt after a fire on the foundations of an earlier mill.","why_significant":"The nomination calls the mill a document of New England's family-owned craft industries, one of the few substantially complete examples. It built a national reputation for custom picture frames made by five generations of the Schwamb family. It is described as the only factory of its kind in the United States still using antique machinery such as face plate lathes and belt-and-pulley systems.","narrative":"Beside Mill Brook in Arlington, Massachusetts, the Old Schwamb Mill is a complex of three buildings on about one and one-half acres: a 2½-story wooden main mill, a dry kiln with a sixty-foot brick chimney, and a wood storage barn. A grist mill stood on the site in the seventeenth century, followed by the Woodbridge Spice Mill, operating by 1778. In 1847 the Schwamb brothers, emigrants from Germany, converted the property to a woodworking shop for handcrafted picture frames. Fire destroyed the building, and the present mill was rebuilt on the original granite boulder and brick foundations in 1860. Its interior framing is original, and its antique face plate lathes and belt-and-pulley systems remain in use. Power came first from the brook, then steam, then electricity in the 1930s. Schwamb frames reached museums and the White House. Listed as an example of a family craft industry, the mill now operates as a living museum with artists' studios.","period_of_significance":"19th Century","architect_builder":null,"architectural_style":null,"criteria":[],"status_note":"Described as in good condition and structurally sound, occupied, and being preserved as a living museum with custom woodworking continuing and artists' studios in the mill.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:11:53.563343-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/46/7961/63796146/content/electronic-records/rg-079/NPS_MA/71000081.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/71000081/d98a957660-800.webp","url_1600":"https://nationalhistoricalregister.com/media/71000081/d98a957660-1600.webp","licence":"CC BY 3.0","author":"Tim Pierce","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Old_Schwamb_Mill.jpg\" rel=\"noopener\">Tim Pierce</a>, <a href=\"https://creativecommons.org/licenses/by/3.0\" rel=\"license noopener\">CC BY 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Old_Schwamb_Mill.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63796146","wikipedia":"https://en.wikipedia.org/wiki/Old_Schwamb_Mill","wikidata":"https://www.wikidata.org/wiki/Q7084941"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/middlesex-county/old-schwamb-mill-71000081/"}