108271, не вдаваясь в подробности Послано elcano, 29-05-2013 21:33
Индия 1829 год
The process of cutting, and grinding, and polishing pebbles is as follows : — The pebble is kept firm by being fastened on a board by a bit of lac — not sealing-wax . It is cut in halves by a small bamboo bow, strung with fine iron wire ; powdered kurand patthar and water are put upon it during the time. The bow is used by the hand. The natives cut the pebbles by this simple method wonderfully even.