Doremus Experimental Machine Cancel

U.S. Machine Cancel Identifier -- Doremus Experimental

Your machine cancel was made by a machine sold by the Doremus Company. This is a very rare type of the machine used experimentally in Washington, DC. Note that it has the dial of a typical Doremus (hour in dial has 'A' or 'P' to indicate A.M. or P.M.), but has the horizontal killer bars of other Doremus devices. Typically this cancel would have the same dial but vertical killer bars (height less than diameter of dial).

The Doremus experimental type machine with horizontal bars

There is a bit more information available about these machines on my Machine Web page.

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Doremus Experimental Machine Cancel

U.S. Machine Cancel Identifier -- Doremus Experimental

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