Introduced in 1867 with 4000 machines being sold in the first year of production. Nearly 200,000 Little Wanzer machines were in use by 1874 & by 1876 half a million had been manufactured. The machine underwent various cosmetic improvements, very early versions have no needle bar cover, later a brass cover was produced but by the 30,000th machine this had been replaced by one which was nickel plated and which included the Patent dates May 16 & June 17 1867.