Driver of This 1975 Van Watched as His Vehicle Failed the Carbon Monoxide Portion of the Test at an Auto Emission Inspection… https://www.rawpixel.com/image/8765476/photo-image-vintage-retroFree Image from public domain licensePng hydrated carbon monoxide myoglobin sticker, transparent background https://www.rawpixel.com/image/9059671/png-sticker-lightView licenseMotorist Drives through the Safety Lane at an Auto Emission Inspection Station in Norwood, Ohio. In Addition to a Safety… https://www.rawpixel.com/image/8770439/photo-image-woman-people-fashionFree Image from public domain licenseYoung Woman Watches as Her Car Goes through Testing at an Auto Emission Inspection Station in Downtown Cincinnati, Ohio. All… https://www.rawpixel.com/image/8769707/photo-image-vintage-woman-peopleFree Image from public domain licenseWeighing balances screws or timing watches on milligram balance, 1936. Photographer: Hine, Lewis. Original public domain… https://www.rawpixel.com/image/8769976/photo-image-vintage-person-cameraFree Image from public domain licenseHydrated carbon monoxide myoglobin collage element isolated image https://www.rawpixel.com/image/9059672/psd-abstract-blue-collage-elementView licenseYoung Girl on a Visit to Her Grandmother in Norwood, Ohio the Home Is near an Auto Emission Inspection Station Where All… https://www.rawpixel.com/image/8769866/photo-image-face-flower-plantFree Image from public domain licenseEmployee of an Auto Emission Inspection Station in Norwood Ohio, Talking to a Customer Whose Station Wagon Has Just Failed… https://www.rawpixel.com/image/8770565/photo-image-vintage-man-workerFree Image from public domain licenseHydrated carbon monoxide myoglobin collage element isolated image https://www.rawpixel.com/image/9041552/image-abstract-blue-collage-elementView licenseCity Employee of an Auto Emission Inspection Station in Downtown Cincinnati, Ohio, Holds a Probe Attached to the Tailpipe of… https://www.rawpixel.com/image/8770540/photo-image-wood-person-guitarFree Image from public domain license[Untitled photo, possibly related to: Anaconda smelter, Montana. Anaconda Copper Mining Company. Poling in the refininf… https://www.rawpixel.com/image/12152238/image-person-art-vintageFree Image from public domain licenseExhaust Analyzer Is Used to Test for Carbon Monoxide and Hydrocarbons Coming From This Car's Tailpipe at an Auto Emission… https://www.rawpixel.com/image/8770567/photo-image-person-cars-musical-instrumentFree Image from public domain licenseAnaconda smelter, Montana. Anaconda Copper Mining Company. Poling in the refining furnace. Wooden pole are plunged into the… https://www.rawpixel.com/image/12151937/image-art-vintage-smokeFree Image from public domain licenseAnaconda smelter, Montana. Anaconda Copper Mining Company. Poling in the refining furnace. Wooden poles are plunged into the… https://www.rawpixel.com/image/12151987/image-person-art-vintageFree Image from public domain licenseRemise Circulaire Pour 32 Locomotives, à Nevers (Premiére Vue Intérieure) by Auguste Hippolyte Collard https://www.rawpixel.com/image/14277534/image-steam-person-public-domainFree Image from public domain license