H.I. Rowntree & Co. are the sole makers of the 'Elect' cocoa : a high-class, unusually digestible cocoa essence… https://www.rawpixel.com/image/14004037/image-paper-book-public-domainFree Image from public domain licenseH.I. Rowntree & Co. are the sole makers of the 'Elect' cocoa : a high-class, unusually digestible cocoa essence… https://www.rawpixel.com/image/14009999/image-background-paper-artFree Image from public domain licenseA hydraulic system for a Rowntree's fire engine. Engraving by W. Lowry, 1812, after J. Farey. https://www.rawpixel.com/image/13975723/image-airplane-pattern-fireFree Image from public domain license