Taylor Hobson Model D (stand-mounted) - this publication also covers the almost identical bench-mounted Type A. Pantograph Engraver Operator's Instruction Manual. Includes three Sales Catalogues (one for the A and two for the D) together with a 32-page Taylor Hobson Accessories Catalogue (including cutter grinders) that not only illustrate the various extras but gives useful details of their functions. This machine was also badged as Newing-Hall.   If you would like a belt for your engraver, this is what you need: https://store.lathes.co.uk/belts/solid-round-plastic-belts