History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c14.s4.14

v1.c14.s4.14

13 That the Roman mints used hinge "is proved by the discovery in Gaul, of an obverse and a reverse die of Constans I, still so connected". Alternatively, the upper die might be so constructed as to fit on the lower one like the lid of a box, as is the case with a pair of dies of Faustina Junior, now in the Lyons Museum (Macdonald, 1916., p.66; COROL, 1906, pp. 178f).