Letters Patents Three 19th century documents For "An improved Material for insulating the Wires of Electric Telegraphs, for lining Articles of Dress...", presented to Job Hamer of Longsight in the Parish of Manchester on 9th November 1859, with accompanying seal, in original case; For "An improved manufacture of Rugs, Quilts, Coverlets on Covers for Beds and of certain Articles of Wearing Apparel", presented to Job Hamer of Longsight in the Parish of Manchester on 9th April 1860, with accompanying seal, in original case; Prolongation of Letters Patent for "Certain Improvements in Metallic Pistons", presented to John Qualter and George Bower on 3rd April 1876, with accompanying seal, in original case (3)