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BALTO Codes - Rhode Island
The Baltimore Enamel is presumed to have manufactured all first-issue Rhode
Island Registers, from 1904 through 1908.  However, the vast majority of the plates
are unmarked.  The 1904 issues are the only ones which seem to have been
consistently labeled with BALTO's distinctive hand-painted date codes, which
reveal that there were batches of Registers produced in both May and June of
1904.  By the 800s, passenger plates no longer carried BALTO marks, although it is
notable that at least one later Dealer plate was marked with a April, 1906 code.

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Verified numbers produced in this batch:
Passenger Plates #1 - #499
Dealer Plate #A9





MAY, 1904





JUNE, 1904


Verified numbers produced in this batch:
Passenger Plates #505 - #609





APRIL, 1906


Verified numbers produced in this batch:
Dealer Plate #A24