![File:Douglas Engelbart's prototype mouth (replica) & Logitech three-button Depraz mouse designed by André Guignard, Computer History Museum, 2009-11-15.jpg - Wikimedia Commons File:Douglas Engelbart's prototype mouth (replica) & Logitech three-button Depraz mouse designed by André Guignard, Computer History Museum, 2009-11-15.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Douglas_Engelbart%27s_prototype_mouth_%28replica%29_%26_Logitech_three-button_Depraz_mouse_designed_by_Andr%C3%A9_Guignard%2C_Computer_History_Museum%2C_2009-11-15.jpg/320px-Douglas_Engelbart%27s_prototype_mouth_%28replica%29_%26_Logitech_three-button_Depraz_mouse_designed_by_Andr%C3%A9_Guignard%2C_Computer_History_Museum%2C_2009-11-15.jpg)
File:Douglas Engelbart's prototype mouth (replica) & Logitech three-button Depraz mouse designed by André Guignard, Computer History Museum, 2009-11-15.jpg - Wikimedia Commons
![Chris Siebenmann on X: "@rone @SwiftOnSecurity I was going to try to make a joke, but you nerd-sniped me into looking up the interesting history of the Depraz mouse. https://t.co/QMamseh7UZ" / X Chris Siebenmann on X: "@rone @SwiftOnSecurity I was going to try to make a joke, but you nerd-sniped me into looking up the interesting history of the Depraz mouse. https://t.co/QMamseh7UZ" / X](https://pbs.twimg.com/media/C-4BcLrWAAAACNY.jpg:large)
Chris Siebenmann on X: "@rone @SwiftOnSecurity I was going to try to make a joke, but you nerd-sniped me into looking up the interesting history of the Depraz mouse. https://t.co/QMamseh7UZ" / X
![Musée Bolo on X: "Prototype of a non hemispherical Dépraz Mouse. Looking for more details about it #donation #thanks https://t.co/yS6EkP2P2P https://t.co/a1pfijsNz4" / X Musée Bolo on X: "Prototype of a non hemispherical Dépraz Mouse. Looking for more details about it #donation #thanks https://t.co/yS6EkP2P2P https://t.co/a1pfijsNz4" / X](https://pbs.twimg.com/media/DJgVjJhWsAAAwC9.jpg:large)