The British Calculator - BriCal
Channel: Jaap Scherphuis
Date: 2018-09-02

The British Calculator, or BriCal, is a simple adding machine for British currency. It was invented by Herbert and Mabel Dickinson in 1905. This one was made in about 1907 by T.J. Marshall & Co.

For more on this  and other mechanical calculators, visit my website:
https://www.jaapsch.net/mechcalc/

0:00 Introduction
0:32 History
2:12 Addition
3:08 Clearing
4:02 Further history
4:30 Opening the case
5:35 Mechanism
7:28 More history
8:22 Outro