[Printed trade cards (2)] / Robert Flinn & Co., North Shields Iron Works [&] 49 Lower Shadwell, London, chain cable & anchor manufacturers. [ca.1830. Bear 'Table [shewing] the proportion of Chain when substituted for Rope, the weight per fathom and the proof strain. Also the weight of Anchors to correspond with the Cables and the Register Tonnage of Vessels'. Also bear 'plan of testing machine'. One bears ms. note by Goodrich. Part A 1516/7 of the Goodrich archive]