![My 1971 Burroughs C3155 calculator. It was made before they decided on how digital number displays should look. That zero at the end is not a mistake.. That's actually how it's supposed My 1971 Burroughs C3155 calculator. It was made before they decided on how digital number displays should look. That zero at the end is not a mistake.. That's actually how it's supposed](https://external-preview.redd.it/9RbhPm75ibHZ8d3ITHhJsubX3NGZNwcWSMRq-LZ3AHM.jpg?auto=webp&s=10296186696918ee4689e30e78bf80109360774e)
My 1971 Burroughs C3155 calculator. It was made before they decided on how digital number displays should look. That zero at the end is not a mistake.. That's actually how it's supposed
![File:Vintage Omron 86R Electronic Pocket Calculator, VFD, Made In Singapore, Introduction Date - 1975 (16218662760).jpg - Wikimedia Commons File:Vintage Omron 86R Electronic Pocket Calculator, VFD, Made In Singapore, Introduction Date - 1975 (16218662760).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/0/08/Vintage_Omron_86R_Electronic_Pocket_Calculator%2C_VFD%2C_Made_In_Singapore%2C_Introduction_Date_-_1975_%2816218662760%29.jpg)
File:Vintage Omron 86R Electronic Pocket Calculator, VFD, Made In Singapore, Introduction Date - 1975 (16218662760).jpg - Wikimedia Commons
![RARE Casio FX-39 Scientific Calculator Green VFD Display 1970s Vintage Tested! | Scientific calculator, Calculator, Old technology RARE Casio FX-39 Scientific Calculator Green VFD Display 1970s Vintage Tested! | Scientific calculator, Calculator, Old technology](https://i.pinimg.com/originals/31/0a/48/310a48b3978629523ff0c417a538dc7c.jpg)