{"product_id":"1919-ad-blaw-knox-pittsburgh-engineer-panama-canal-steel-architecture-subway-124019-sca3-339","title":"1919 Ad Blaw-Knox Pittsburgh Engineer Panama Canal Steel Architecture SCA3","description":"This is an original 1919 black and white print ad for the Blaw-Knox Company of Pittsburgh, Pennsylvania. Shown in the image are workers constructing a subway system. The company offered steel forms, clamshell buckets, fabricated steel, water-cooled appliances, plate work and towers.\n\n\u003cp\u003eCONDITION\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003eThis 92+ year old Item is rated Very Fine ++. Light aging throughout. Light wrinkling. No natural defects. No surface rub. No tears. No water damage. \u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eProduct Type:\u003c\/b\u003e Original Print Ad; Black \/ White\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 10 x 12.5 inches; 25 x 32 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:  Vintage Advertising, building, construction, Los Angeles, New York, transport, transportation, rail\u003c\/p\u003e\u003cp\u003eSCA3A10B11C19 \u003c\/p\u003e","brand":"Period Paper","offers":[{"title":"Default Title","offer_id":33548176273,"sku":"124019_SCA3_339","price":43.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/8371\/products\/SCA3_339_195515f4-b7b5-439a-bd0f-c206276cf0eb.jpg?v=1571709555","url":"https:\/\/www.periodpaper.com\/products\/1919-ad-blaw-knox-pittsburgh-engineer-panama-canal-steel-architecture-subway-124019-sca3-339","provider":"Period Paper Historic Art LLC","version":"1.0","type":"link"}