{"product_id":"1928-ad-ethyl-gasoline-general-motors-engine-knock-original-advertising-050858-sep4-227","title":"1928 Ad Ethyl Gasoline General Motors Engine Knock - ORIGINAL ADVERTISING SEP4","description":"This is an original 1928 color print ad for the Ethyl Gasoline Corporation. The ad features the tagline ,\"Knocks out that Knock\", in reference to the addition of lead in the gasoline to abolish engine knock. \u003cp\u003eCONDITION\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003eThis 83+ year old Item is rated Very Fine ++. Light aging throughout.  - bottom right corner. Light wrinkling. No natural defects. No tears. There is slight bleed through from the opposite page.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eProduct Type:\u003c\/b\u003e Original Print Ad; Color\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGrade:\u003c\/b\u003e Very Fine ++\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDimensions:\u003c\/b\u003e Approximately 11 x 14 inches; 28 x 36 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAuthentication:\u003c\/b\u003e Serial-Numbered Certificate of Authenticity w\/ Full Provenance\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProtection:\u003c\/b\u003e Packaged in a custom archival sleeve with an acid-free black board (great for display, gift-giving, and preservation)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eKeywords specific to this image: Oil Refining, Thomas Midgley, Tetraethyllead, TEL, Automobiles Vintage Advertising\u003c\/p\u003e\u003cp\u003eSEP4A4B21C28 \u003c\/p\u003e","brand":"Period Paper","offers":[{"title":"Default Title","offer_id":33600673617,"sku":"050858_SEP4_227","price":43.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/8371\/products\/SEP4_227_72c08d56-97ea-4947-8483-f2f81a77d94e.jpg?v=1571711372","url":"https:\/\/www.periodpaper.com\/products\/1928-ad-ethyl-gasoline-general-motors-engine-knock-original-advertising-050858-sep4-227","provider":"Period Paper Historic Art LLC","version":"1.0","type":"link"}