Burroughs' Calculating Machine

It's cccrrrrraaaaaaazzzzzzzzzyyyyyyyyyyyyyy calculating!!!!!

Stupid people fret no more!

With William S. Burrough's newest invention, you can do math with the turn of a crank! This mind blowing contraption will save people time in the long run.

How it works

To use the adding machine, you type the number you want to add on the keyboard. Then you pull the crank to add the number. The gears in the inside then add your numbers and print the sum on a piece of paper.

Buy one today!

When and Where

The Burroughs' adding machine was invented in 1891 in St. Louis, Missouri.

Impacting society

It helped bank tellers and stock brokers by speeding up their adding. It also helped math professors and scientists work out complex equations.


The first Burroughs adding machine cost $300-$500 and weighed 37 pounds. Later advanced models were priced up to $875.