This layout of a lower case is the Perfection Type Case manufactured by Perfection Type Case Co. of Cincinnati, Ohio, as illustrated in The Inland Printer March 1898. It is the design patented by T.Oakley in 1893. A double case version seems also to have been produced, as can be seen in this image of a case in 1999.
There were several attempts at producing improved case layouts by altering the size and shape of boxes, so as to speed up the travel of the compositor's hand. For example, Johnson & Stanhope of 1824, Clapp's Success case of 1898, Jacobi of 1913, and Caslon of 1925.
|Other empty cases|
ie with the boxes left blank
|Other type layouts|
ie with characters assigned to boxes
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and Double Cases
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