English-born forger (1813-1876) of letters and documents from luminaries including Washington, Benjamin Franklin, and Horatio Nelson An original Robert Spring forgery of a George Washington endorsement signature on the reverse of a bank check, 5 x 2.5, made out to Henry Neilson for $440.00, dated August 26, 1794, and signed on the reverse, “Go: Washington.” Check is inlaid to a 5.5 x 3.5 off-white sheet. In very good condition, with even overall toning, signature a couple of shades light, but legible, and old repairs to both sides. Spring forgeries, done in the 1860s and 1870s, are highly collectible. RRAuction COA.