| Cassini Old Series (1805-1874) |
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Georeferenced high quality reproduction of OS one-Inch ('Old series') maps dating from 1816-1830
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| Cassini Revised New Series (1897-1904) |
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Georeferenced high quality reproduction of OS one-Inch ('Revised New Series') maps
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| Cassini Popular Edition (1919-1926) |
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Georeferenced high quality reproduction of OS one-Inch ('Popular Edition') maps
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| Cassini New Popular Edition (1945-1948) |
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Georeferenced high quality reproduction of OS one-Inch ('New Popular Edition') maps
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