| Joined: | Mon Apr 2nd, 2012 |
| Location: | Carthew, Cornwall, United Kingdom |
| Posts: | 6877 |
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jk wrote:.I still have an old circular slide rule that I was given 48 years ago!Is that an Otis King?
No it is a plastic one that has a plastic insert that also has all sorts of useful Chemistry, Physic and SI/Imperial/US unit interconversion information.
It was a trade gift from BOC to my Dad that I acquired in 1962. In fact it must be 50 years old last year not 48!! It is now antique.
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Still learning after all these years!
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