Mother of all Slide Rules- The Fuller Calculator

Why a Fuller Calculator?
A slide rule is a mechanical calculator which was the defining characteristic of the mid-20th Century engineer. While it is a very useful tool, allowing us to visualize the relationship between numbers, it does have a drawback- accuracy.
A standard slide rule is accurate to 3 significant digits. Advanced slide rules such as the Faber Castell N 2/83 can be pushed to 4 digits, as can 20 inch slide rules. For the ultimate in accuracy, the Fuller Calculator with its 500 inch spiral scale, can easily go to 5 significant figure and will allow you to even get to 6 if the analog gods are with you.
Thank you to all the patreons, pay pal donations and channel memberships to enable me to obtain this rare slide rule from a small shop in the UK, and to Fight the Flat Earth for accepting delivery and forwarding it on to me in the US as they would not ship internationally.
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