Facit NTK Calculator
Physical Object
2019.06.27.01
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The Model NTK was in production between 1954 and 1957. It replaced the Model TK, and was succeeded by the Model C1-13, which were functionally identical (and very similar mechanically). Instructions for operating this machine can be found on the User Guides page here. Despite its short production run, Facit managed to churn out approximately 55,000 Model NTKs, and they are among the most readily available to collectors, and every collection should have one (or a Model C1-13).