Mongolia, the Tangut country, and the solitudes of northern Tibet/Volume 1/Dumb Bargaining
This kind of dumb higgling by finger pressure inside a sleeve or under a shawl, is found over all the longitude of Asia, from Peking certainly to Bombay, and possibly to Constantinople. I have suggested elsewhere that a rumour of the use of such a system among the Chinese might have been confounded by Pliny with another system of dumb bargaining, related of many uncivilised nations, and have given rise to that strange statement of his about the Seres.—[Y.]
- Marco Polo, 2nd ed., ii. 486.