{"product_id":"thornton-blundell-800-series-slide-rule-engineers-scale-with-case-leaflet","title":"Thornton Blundell 800 Series Slide Rule Engineers Scale with Case \u0026 Leaflet","description":"Brand: Thornton \/ Blundell\nModel: 800 Series\nType: Engineering slide rule\nMaterial: Plastic\/acetate rule with cursor\nColour: White rule, tan ends, clear cursor\nIncludes: Original case + Academy instruction leaflet\n\nThis is a vintage British Thornton Blundell 800 Series engineering slide rule, complete with its original hard case and Blundell Academy instruction leaflet. These slide rules are well regarded for their precision and are popular with collectors of engineering and technical instruments.\nThe rule shows light cosmetic wear from age and use, but there are no structural defects, and the cursor slides correctly. Scales remain clear and legible.\nIncludes:\n• Thornton\/Blundell 800 Series slide rule\n• Clear sliding cursor\n• Hard protective case\n• Blundell Academy instruction leaflet\nA great addition for collectors of vintage engineering tools, calculators or technical drawing equipment.","brand":null,"offers":[{"title":"Default Title","offer_id":56762424131962,"sku":"046951-1","price":34.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/9249\/6158\/files\/20260401_2Fd801b628-15de-49c0-9d86-6e84efcebf28Untitled_20design_20-_202026-04-01T115307_814_png.jpg?v=1775041164","url":"https:\/\/shop.longfield.org.uk\/products\/thornton-blundell-800-series-slide-rule-engineers-scale-with-case-leaflet","provider":"Longfield Hospice","version":"1.0","type":"link"}