Datamp.org Patents https://www.datamp.org/ Recently added patents en-us US Patent: 1,438,040 https://www.datamp.org/patents/displayPatent.php?id=74459&pn=1,438,040 Tool Holder Patentee: Louis W. Jones - Cleveland, Cuyahoga County OH Granted:1922-12-05

Parsons-Newton Co, Newark NJ, called theirs the Jones "Never Break as well as Jones "Can't Break". Might have been made for Mephisto. Alsos made by Allen & Co. of New Haven
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