{"nrhp_refnum":"83002255","name":"Mascot Roller Mills","other_names":["Ressler's Mill"],"category":"building","location":{"address":"Newport and Stumptown Rds.","address_restricted":false,"city":"Mascot","county":"Lancaster County","state":"PA","lat":40.062908177000054,"lon":-76.15697583199994,"geom_source":"nps_gis"},"listed_date":"1983-09-29","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"Ressler's Mill, also called Mascot Roller Mills, is a stone grist mill with an attached 1855 brick house, brick summer kitchen and small frame barn, located at the southwest corner of Newport Road and Stumptown Road at Mascot in Upper Leacock Township, Lancaster County, Pennsylvania. The mill dates from about 1737-1740 and was enlarged to three stories by about 1825.","why_significant":"The mill is regarded as a monument in the industrial history of southeastern Pennsylvania because it has operated continuously on one site since the second quarter of the eighteenth century, and its 1906 roller machinery is believed to be the oldest of its type surviving in Lancaster County. Its structural evolution from one story to three illustrates several mill forms of the 1700s and 1800s, and the adjacent 1855 Groff House is notable for its preserved late nineteenth-century paint colors.","narrative":"Stone grist mill at Mascot in Upper Leacock Township, Lancaster County, begun about 1737-1740 and brought to three stories by about 1825. Its random masonry shows clear marks of growth, moving from one story to two and then three, and the western wing began as a gable-roofed addition in the late 1700s. Roller machinery installed in 1906 by Strout, Waldron & Co. of Muncy replaced earlier French burrs and an overshot wheel, and is believed to be the oldest surviving roller mechanism of its type in the county. The mill operated commercially into the late 1970s and was a custom mill for nearby farmers in its later years. A post office was located in the mill from 1882 to 1934. The mill has been traced through deeds to 1740, and it is regarded as the lone survivor of at least five mills once on Mill Creek. Beside it stands the 1855 brick Groff House, whose paint scheme reflects late nineteenth-century colors, preserved through the twentieth century by the Ressler family.","period_of_significance":"c. 1737/40-1825","architect_builder":null,"architectural_style":null,"criteria":[],"status_note":"Continues in operation on a limited basis; corn is still ground during warm months.","vacant_flag":false,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:33.318269-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/83002255.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/83002255/121b5d4b7d-800.webp","url_1600":"https://nationalhistoricalregister.com/media/83002255/121b5d4b7d-1600.webp","licence":"CC BY-SA 3.0","author":"Smallbones","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Mascot_Mills_LanCo_PA.JPG\" rel=\"noopener\">Smallbones</a>, <a href=\"https://creativecommons.org/licenses/by-sa/3.0\" rel=\"license noopener\">CC BY-SA 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Mascot_Mills_LanCo_PA.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71996416","wikipedia":"https://en.wikipedia.org/wiki/Mascot_Roller_Mills","wikidata":"https://www.wikidata.org/wiki/Q6782889"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/lancaster-county/mascot-roller-mills-83002255/"}