Posted 9 years ago
The Caligraph was the first typewriter to appear with the double keyboard arrangement with no character shift key. A Scientific American article (March 1886) about the Caligraph, presented the perceived advantage of the double keyboard by stating 'Up to 1881, when the American Writing Machine Company introduced the Caligraph, double case writing machines were incomplete, being so constructed as to compel the operator to shift the carriage by a gratuitous stroke for capital letters and figures. The Caligraph prints each character in both capitals and small letters at a single finger stroke.' Many other double keyboard typewriters would follow.
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