1934 Surveys in Swat, Chitral, Gilgit and Neighbouring Territories by SOI
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1934 Surveys in Swat, Chitral, Gilgit and Neighbouring Territories by SOI
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Continue reading →1934 Index Map to Riverain Surveys of the Punjab by SoI
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Continue reading →1927 Topographical Survey Index by Survey of India
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Continue reading →1923 India Lines of Equal Magnetic Total Force in 1909
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Continue reading →1923 India Lines of Equal Total Magnetic Force in 1920
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Continue reading →1923 India Lines of Equal Magnetic Dip in 1920
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Continue reading →1922 Survey and Publication
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Continue reading →1922 Survey of India Magnetic Survey Stations
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