Progress is fine, but it's gone on for too long.
with apologies to Ogden Nash...
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Monday, November 4, 2013
Planimeter
This was being advertised on Kijiji a while ago. What a beautiful instrument!
Funk & Wagnalls New Practical Standard Dictionary.
Britannica World Language Edition.
1946, 1957.
For more on these interesting devices, visit
The Museum of HP Calculators.
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