Puckerings has dated this piece to the 1920s.
Both top and bottom are lucky enough to have retained their impressed English registration numbers, 685799 dating it to 1921.

Just back from being professionally re-polished to gleam, it remains in excellent condition, measuring 4 3/4" across to cup handle.
Item ID: 32900
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Puckerings has dated this piece to the 1920s.
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