4 Masudaya robots from the "gang of five" Japan, ca 1950/60

we have here the grail of every robot collector 4 robots out of 5 from masudaya's famous Gang of five it's missing machine man which has become unpayable and which is a lavender in red we have the radicon robot 1957 the only one with a textured surface first remote control in robot the lavender 1959 the most beautiful lithographs of gear in robot it's called non stop robot 1957 the giant sonic1962 with its choo choo noise and its superb head different from the 4 others two different-colored eyes that blink the target robot 1964 with its revolver and arrow it comes towards you you shoot it at its target it goes off in the other direction then comes back (very difficult to find) The "Gang of Five" family of robots is based on the same prints. These 38 cm-high, battery-powered robots were produced by Masudaya in Japan. Masudaya is Japan's oldest operating toy company, with a history dating back to 1724. Its MT (T over M) logo (for Masudaya Toy) has been in use since the 1920s. In the 1930s, the company set up a modern toy laboratory, then added "Modern Toy" to its logo, suggesting that MT stood for "Modern Toys". It's hard to imagine a toy company approaching 300 years of existence. Masudaya hasn't produced as many robots as other Japanese toy manufacturers. However, it is famous for having produced a series of five skirted robots over a period of seven years. Robot collectors have affectionately dubbed this sought-after group of robots the "Gang of Five". After almost two years of development, Masudaya completed the world's first radio-controlled toy in 1955: a 35 cm-long sheet-metal bus. Among the Gang of Five, the first radio-controlled robot was the Radicon, produced in 1957. Although this was Masudaya's second Radicon, it was technically more difficult to manufacture and stamp.