Stumbled across the first commercially available calculator, used by Harvard astronomers at the turn of the last century. “The Millionaire” debuted in 1899, and could multiply two eight digit numbers in under
System Source Computer Museum
HNF - Calculating machines – Ideas, inventors, entrepreneurs
John Wolff's Web Museum - Millionaire Register
Inside the Denver Mint: Millionaire | U.S. Mint
Millionaire Calculator – The Fastest Multiplying Machine Of 19th Century - 9Mood
Mystery Dating of the World-famous 'Millionaire' Calculating Machine Solved | blog@CACM | Communications of the ACM
Instruction booklet for The Millionaire calculator - MAAS Collection
Millionaire Calculating Machine with Stand | National Museum of American History
Millionaire Calculating Machine | National Museum of American History
Inside the Denver Mint: Millionaire | U.S. Mint
Millionaire Calculator Machine Explained - Everything You Need To Know - History-Computer
Mystery Dating of the World-famous 'Millionaire' Calculating Machine Solved | blog@CACM | Communications of the ACM
Millionaire Calculator by Hans W. Egli Auction Number 2763T Lot Number 1194 | Skinner Auctioneers
John Wolff's Web Museum - Millionaire - Technical Description
Sir Ronald Fisher and his 'Millionaire' Calculator « Heart Attack Prevention
Millionaire Calculator Machine Explained - Everything You Need To Know - History-Computer
Inside the Denver Mint: Millionaire | U.S. Mint
Millionaire Calculating Machine | National Museum of American History
Millionaire Calculator Machine Explained - Everything You Need To Know - History-Computer
Millionaire Calculator Machine Explained - Everything You Need To Know - History-Computer
Millionaire Calculating Machine | National Museum of American History
