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Even the production beginning of the Carter pens is not clear, someone set this back to 1924,[1] when it seems that the first pens marketed by Carter appeared, but it seems that they were manufacturing residues of Laughlin, others set the beginning in 1926. The first pens marked Carter were launched under the slogan You know the ink. These models were hard rubber flattops, with the the De Witt-La France patented spring-loaded clip, probably obtained from the materials inherited from Laughlin. These pen did not have a model name, and they are called simply The Carter Pen.
  1. according to what said here and here, bat this last one repeat the 1926 date, also reported here.