Puckerings has dated this piece to the 1910s.

They are lucky enough to also have an English design registration number (71552) which dates the design to 1888; however they are marked "Made In England" which indicates a 20th century manufacture, these I would date to c.1910, late Edwardian in era. They are also marked "Triple Deposit" and Prince's Plate.
They measure as follows: Small: 12" x 9"; Medium: 15 1/2" x 11 1/2" and Large: 17 1/2" x 13".
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ITEM ID 41177
Puckerings has dated this piece to the 1910s.
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