![A.D. Copier, Unique vase with antimony crackle, Glass Factory Leerdam, ca. 1927 - Andries Dirk (A.D.) Copier | Kunstconsult A.D. Copier, Unique vase with antimony crackle, Glass Factory Leerdam, ca. 1927 - Andries Dirk (A.D.) Copier | Kunstconsult](https://images.artimin.com/i-f/2000/2000/1:1/130415.jpg)
A.D. Copier, Unique vase with antimony crackle, Glass Factory Leerdam, ca. 1927 - Andries Dirk (A.D.) Copier | Kunstconsult
James Hannam on Twitter: "(Below right, the ore and below left Principe's own yellow 'glass of antimony'. Above some alchemical 'stellate regulus of antimony' prepared from a recipe by George Starkey (1628 -
![Vintage green glass goblet (with W mark in oval): 371 ppm Lead + 14 ppm Antimony [an exception to the loose "rule" that press lines often mean Lead-free.] Vintage green glass goblet (with W mark in oval): 371 ppm Lead + 14 ppm Antimony [an exception to the loose "rule" that press lines often mean Lead-free.]](https://i0.wp.com/tamararubin.com/wp-content/uploads/2021/12/56DEB318-33CC-4B20-90E4-AB1D5C38BF2E-scaled.jpeg?fit=2560%2C1920&ssl=1)
Vintage green glass goblet (with W mark in oval): 371 ppm Lead + 14 ppm Antimony [an exception to the loose "rule" that press lines often mean Lead-free.]
![A. D. Copier Leerdam Unica Number 20 with Antimony Crackle Art Glass Vase, 1930s For Sale at 1stDibs A. D. Copier Leerdam Unica Number 20 with Antimony Crackle Art Glass Vase, 1930s For Sale at 1stDibs](https://a.1stdibscdn.com/archivesE/upload/1121189/f_252337421631223758248/25233742_datamatics.jpg)