Also, a small collection of the most intense calculators I’ve found.pic.twitter.com/QQgWmJ3byu
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“I think (…) the art was taken out of the comptometer when we converted to decimal currency/from yards to metres.” http://www.johnwolff.id.au/calculators/comptometers/Adamson.htm …
A specialized betting-shop calculator with a key called “Dead Heat.” http://www.vintagecalculators.com/html/betting-shop_calculators.html …pic.twitter.com/jmGPKk9I3J
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