US Patent No. 100,749, granted March 15, 1870, for a machine that stamps ornamental designs through lace paper (paper doilies and trimming) using hammers and dies. It describes a frame holding two machines, one for circular pieces and one for straight strips. Levers are driven by a revolving drum with arms, tensioned by adjustable springs and a treadle, and a bendable guide spring positions the hammers. The patent has two sheets of drawings (Figs. 1-5) followed by the specification and five claims.