Clock golf is a game based on golf, originating in the mid 19th century. Players putt a golf ball from each in turn of 12 numbered points arranged in a circle as in a clock face, to a single hole placed within the circle. Alternative names include Clock-Golf, Round the Clock Golf, and Golf Around the Clock. The firm Jaques of London claim that they "originated the popular garden game of Clock Golf in the mid 19th century". The Oxford English Dictionary's earliest illustration of the use of the term dates from 1905. The wording on an early boxed set of equipment was "Clock Golf - A new game for the lawn - Interesting to golfers and a most popular amusement at garden parties". The game has often been offered to hotel guests as an entertainment. A 1905 print of "Clock golf at the Royal Palm , Miami, Fla" is held by the Library of Congress, and in 1909 the New York Times reported that 30 guests, both ladies and gentlemen, had taken part in a clock golf tournament at the Pocono Mountain House hotel at Mount Pocono. A 1925 advertisement for a hotel in Bournemouth, England offers "Croquet, Clock Golf, Billiards, etc." while in 2016 a hotel in Scarborough, England says that "the children's play area, clock golf and putting green, provide plenty of fun activities for children of all ages" and at one in Silkeborg, Denmark, "You can also avail yourself of clock golf or the pétanque court." English Novelist E. F. Benson makes reference to clock golf in Chapter 8 of his novel Lucia in London in the Mapp and Lucia series. Daisy and Robert Quantock are playing the game on their lawn. British Novelist P.G. Wodehouse makes reference to country house lodgers playing clock golf in Summer Moonshine. Agatha Christie's novel 4:50 from Paddington also features a clock golf. Clock golf was available to passengers on the promenade deck of the Short S.23 flying boat. The first course in Denmark is said to have been at Gråsten Palace where Queen Ingrid enjoyed playing with her family. Jaques still sell equipment for the game, comprising a set of 12 markers numbered I to XII, balls, and a pre-formed hole with flag, with or without a putter. Metal roman numbers have also been made by F.H.Ayres of London and Hamleys. The firm of A.G. Spalding of New York manufactured a set using numbers 1–12 around 1900, and in the late 1920s the firm of P.S.P. Inc sold a stylish set of 1–12, painted alternately red and white, presented in a tin under the name "Round the Clock Golf". A Danish firm offers to install a prefabricated clock golf playing area with artificial grass surrounded by a granite border. Jaques' description suggests that clock golf can be played wherever there is space for "an approximate circle of 10–30ft in diameter", and that shrubs and other obstacles can add to the interest. The hole is not placed centrally, so the 12 "holes" of the game can be of different lengths. SHAPE America offers a set of instructions for "Golf Around the Clock" as a "lead-up game" useful as a preliminary for learners of golf.