000 00276nam a2200121Ia 4500
100 _aJules Roger Sauer
654 _aPolytechnic - Jewellery
942 _cBK
245 _aEmeralds around the world
260 _a[s.n.], [s.l.]
_c1992
082 _a622.386 Sau
300 _a160p
999 _c33953
_d33953