John Joseph Merlin he wheeled about himself, with great facility to any part of the room." At an event held by Teresa Cornelys in Carlisle House, Soho Square, Merlin appeared somewhat disastrously on roller skates of his own invention. By April 1783 Merlin was putting his musical instruments and his automatons on display at his own museum. Advertisements invited readers to visit his Museum of Musical Instruments and Mechanical Inventions at No. 2, Princes Street, Hanover Square, London. Well-off Londoners could meet their friends at Merlin's Mechanical Museum in the afternoon or evening, pay to see the exhibits, and drink tea or coffee
William Willis (inventor) papers in 1880. Taking his cue from Daguerre's marketing practices with his Daguerreotypes, Willis sold licenses to photographers wanting to use his process, and then sold them the materials. William Willis (inventor) William Willis Jr. (1841–1923) is a British inventor who developed the platinum printing process, an early form of photography, based on the light sensitivity of platinum salts, originally discovered by John Herschel. Willis made the first platinum print in 1873 and patented it, but the process was imperfect, attracting little interest. In 1874, the British Journal of Photography announced his Platinum Printing process. It gave a report of