![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
![File:Vintage Unisonic Electronic Pocket Calculator, Model 890C, VFD (Vacuum Fluorescent) Display, Sealed Battery Pack, Made In Japan, Circa 1975 (16390017822).jpg - Wikimedia Commons File:Vintage Unisonic Electronic Pocket Calculator, Model 890C, VFD (Vacuum Fluorescent) Display, Sealed Battery Pack, Made In Japan, Circa 1975 (16390017822).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/6/66/Vintage_Unisonic_Electronic_Pocket_Calculator%2C_Model_890C%2C_VFD_%28Vacuum_Fluorescent%29_Display%2C_Sealed_Battery_Pack%2C_Made_In_Japan%2C_Circa_1975_%2816390017822%29.jpg/451px-Vintage_Unisonic_Electronic_Pocket_Calculator%2C_Model_890C%2C_VFD_%28Vacuum_Fluorescent%29_Display%2C_Sealed_Battery_Pack%2C_Made_In_Japan%2C_Circa_1975_%2816390017822%29.jpg)
File:Vintage Unisonic Electronic Pocket Calculator, Model 890C, VFD (Vacuum Fluorescent) Display, Sealed Battery Pack, Made In Japan, Circa 1975 (16390017822).jpg - Wikimedia Commons
![Victor Technology 1297 - Printing calculator - VFD - 12 digits - AC adapter - black, white (1297) at TigerDirect.com Victor Technology 1297 - Printing calculator - VFD - 12 digits - AC adapter - black, white (1297) at TigerDirect.com](https://images.highspeedbackbone.net/skuimages/large/CNET-40407876.jpg)
Victor Technology 1297 - Printing calculator - VFD - 12 digits - AC adapter - black, white (1297) at TigerDirect.com
![This calculator is so old that they were still experimenting with how the digits should be displayed.. And yes, that is actually how the zero looks. : r/interestingasfuck This calculator is so old that they were still experimenting with how the digits should be displayed.. And yes, that is actually how the zero looks. : r/interestingasfuck](https://preview.redd.it/nrd3gimaw36y.jpg?auto=webp&s=0ac0f93bb9eab3a481257b2123353c2ac5f42f69)
This calculator is so old that they were still experimenting with how the digits should be displayed.. And yes, that is actually how the zero looks. : r/interestingasfuck
![File:Vintage Bohn Omnitrex Electronic Pocket Calculator, Made In Taiwan, VFD, Circa 1973 (15992278795).jpg - Wikimedia Commons File:Vintage Bohn Omnitrex Electronic Pocket Calculator, Made In Taiwan, VFD, Circa 1973 (15992278795).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/d/db/Vintage_Bohn_Omnitrex_Electronic_Pocket_Calculator%2C_Made_In_Taiwan%2C_VFD%2C_Circa_1973_%2815992278795%29.jpg)
File:Vintage Bohn Omnitrex Electronic Pocket Calculator, Made In Taiwan, VFD, Circa 1973 (15992278795).jpg - Wikimedia Commons
![RARE Casio FX-39 Scientific Calculator Green VFD Display 1970s Vintage Tested! | Scientific calculator, Calculator, Vintage RARE Casio FX-39 Scientific Calculator Green VFD Display 1970s Vintage Tested! | Scientific calculator, Calculator, Vintage](https://i.pinimg.com/originals/31/0a/48/310a48b3978629523ff0c417a538dc7c.jpg)