Index Chart to the Great Trigonometrical Survey of India. Sh. 595 x 570 mm. Image taken from Index Chart to the Great Trigonometrical Survey of India,showing net work of Triangulation Completed to 1st May,1870 (--1st October,1895). Scale,96 miles = 1 inch. Originally published in Calcutta : Surveyor General's Office,1870-1895 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / British Library |
Taille de l’image : | 4214 px × 4148 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |