Sphinx marks and dates
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1906 - 1929
Export mark
1906 - 1929
Export mark
1906 - 1929
Export mark
1920
1920
Registered in 1923.
Used since 1922.
1925
1928
1928
1928
1928
1930 - 1955
1930
Hotel dinnerware
1931
1948 - 2000
1950s
1950s
1950s
1950s
1955 - 1969
After 1958
Unknown
Unknown
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