U.S. Machine Cancel Finder -- Service Markings

Several manufacturers' machines impressed service markings. These type of markings include: "Received", "Received (with station/branch)", "Train Late", and so on. These markings are usually impressed on the back of a cover. It is best to use the dial design to help identify these machines, since the killer bars are not present. Sometimes, a receiving mark is the postmark dial only. This method is a greater challenge to the collector, since many dials look alike.

[american type a dial]       [american type b dial] Year date is straight across dial (continuous or split)

[barry circular dial] Year date is curved at bottom of dial

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Based on Code by Louis Lazaris. See article and original inspiration.