{"product_id":"armstrong-concertina-frame-corkscrew-double-lever-mechanical-nickel-plated-england-pre-1902","title":"Armstrong Concertina Frame Corkscrew, Double Lever Mechanical, Nickel Plated, England, pre-1902","description":"\u003cp data-start=\"253\" data-end=\"735\"\u003eA concertina (accordion) frame corkscrew of the Armstrong patent family, featuring a compound double-lever mechanical expansion system. The rectangular scissor frame extends vertically via a central ring handle, transmitting force through articulated links to raise the cork. This design represents a late 19th-century development aimed at improving extraction efficiency over simple direct-pull worms, preceding more compact lever systems of the 20th century.\u003c\/p\u003e\n\u003cp data-start=\"737\" data-end=\"1183\"\u003eNickel plating remains largely intact with visible wear and oxidation, particularly along the arms and pivots. The worm is straight, well-formed, and retains a usable point. Joints show moderate play consistent with age but remain structurally sound. The mechanism deploys and retracts correctly and is operational.\u003cbr data-start=\"1052\" data-end=\"1055\"\u003e\u003cstrong\u003eCirca:\u003c\/strong\u003e pre-1902\u003cbr data-start=\"1070\" data-end=\"1073\"\u003e\u003cstrong\u003eProvenance: \u003c\/strong\u003eThomas Guenther Collection\u003cbr data-start=\"1111\" data-end=\"1114\"\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e \u003cbr\u003eClosed length 13.25 cm; \u003cbr\u003eWidth 16.8 cm\u003cbr data-start=\"1165\" data-end=\"1168\"\u003eWeight: 144 g\u003c\/p\u003e","brand":"Esteemed Antiques","offers":[{"title":"Default Title","offer_id":53713471111509,"sku":"TG  1.90","price":175.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/2353\/1861\/files\/1_5367a53c-959b-4d11-a033-9ab26a804cd3.jpg?v=1776535627","url":"https:\/\/esteemedantiques.com\/products\/armstrong-concertina-frame-corkscrew-double-lever-mechanical-nickel-plated-england-pre-1902","provider":"Esteemed Antiques","version":"1.0","type":"link"}