Category:Great Trigonometrical Survey
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19th-century survey to measure the Indian subcontinent | |||||
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Subcategories
This category has the following 4 subcategories, out of 4 total.
Media in category "Great Trigonometrical Survey"
The following 27 files are in this category, out of 27 total.
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1801 - 20 - 55 Trigonometrical Operations.jpg 10,290 × 8,705; 3.8 MB
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Calcutta Baseline 1832.jpg 1,143 × 832; 147 KB
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George Everest - Maull & Polyblank.jpg 314 × 462; 123 KB
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Great trignometric Survey ridge stone.jpg 6,000 × 4,000; 9.42 MB
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GTS Bangalore.jpg 1,920 × 1,440; 1.39 MB
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GTS baseline Bangalore.jpg 1,920 × 1,440; 1.42 MB
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Ramsden zenith sector.jpg 952 × 1,670; 594 KB
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Survey towers GTS.jpg 1,088 × 1,580; 738 KB
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Towers GTS.jpg 816 × 1,638; 622 KB
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William Lambton signature.jpg 362 × 87; 6 KB
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William Lambton.jpg 723 × 990; 196 KB