Datamp.org Patents https://www.datamp.org/ Recently added patents en-us US Patent: 535,717 https://www.datamp.org/patents/displayPatent.php?id=76530&pn=535,717 Combination Square Bevel Patentee: John McLean - Miller's Ferry AL Granted:1895-03-12

Sample seen on EBAY and differs from Patent Drawings slightly.
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