OK were founded in 1899, their early machines being powered by engines from De Dion, Minerva, Precision and Green. Following a move into volume production in 1911, Birmingham-based OK concentrated on two-strokes, notably with a bike called the Junior.
Following the dissolution of the founding partnership in 1927, Ernest Humphries appended Supreme to the original marque, and a year later OK-Supreme had won their first and only TT win in the Isle of Man with Frank Longman's victory. By the 1930s, all OK-Supremes were four-strokes with JAP or Matchless motors. After the Second World War, however, the logo only ever appeared on a few grass track racing bikes.
Being auctioned here is a Humphries and Dawes built, belt-driven OK Junior from 1920. Although not run for fifteen years, the vendor says the now rare bike has been well stored in a dry garage during this time. Indeed, the condition of frame and cycle parts is claimed to be good, with maroon and black paintwork very good and 2 3/4hp (248cc) motor likely to be in good order.