{"id":153813,"date":"2020-07-21T12:48:54","date_gmt":"2020-07-21T10:48:54","guid":{"rendered":"https:\/\/dev-museonicolis.leaduser.it\/1948-monroe-la5-160\/"},"modified":"2021-12-23T16:51:48","modified_gmt":"2021-12-23T15:51:48","slug":"1948-monroe-la5-160","status":"publish","type":"post","link":"https:\/\/www.museonicolis.com\/en\/1948-monroe-la5-160\/","title":{"rendered":"Monroe, 1948, LA5-160"},"content":{"rendered":"

Monroe, 1948, LA5-160, USA<\/strong><\/p>\n

The\u00a0Monroe Calculating Machine Company<\/strong>\u00a0was founded by Jay R. Monroe in\u00a01912<\/strong>\u00a0in order to make calculators based on the latest design by Frank Baldwin. Baldwin had invented many different calculation machines, but was unable to market them successfully for many years.<\/p>\n

The first Monroe calculator<\/strong>\u00a0was the\u00a0model A in 1911\/1912<\/strong>. Larger scale production started with the model D in 1914. This was followed by the models E, F, and G over the next few years. The model K was released in 1921. Note that it seems that these early model letters simply denote the year it was first made, from A in 1911 to K in 1921.<\/p>\n

In\u00a01929<\/strong>\u00a0Monroe made the\u00a0model L<\/strong>, that is mechanically identical to the model K, except that it was about half the size, and much lighter. Versions of the model L\/LA were produced until the 1960s. Several further calculator models followed, most of them electrically driven.<\/p>\n

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