- FondsMG 146 - W.O. Kupsch fonds
- Série organiqueJ. Audio-Visual Materials
- 2085 en plus...
- PièceWOK 18-141 - Calcite, var.
- PièceWOK 18-143 - Fluorite, Rosiclare, Illinois. Typical cleavage octahedra
- PièceWOK 18-144 - Galena, Near Galena, Kansas. A group of cubic crystals
- PièceWOK 18-145 - Gold, California. Heavy wire gold on milky quartz
- PièceWOK 18-146 - Gypsum, var. Selenite, South Dakota. A "Fish-tail" twin
- PièceWOK 18-147 - Agate, Brazil. Banded grey agate, crystalline quartz and amethyst
- PièceWOK 18-148 - Quartz, var. Milky quartz, Curay, Colorado. A choice group of large milky white crystals
- PièceWOK 18-149 - Quartz, var. Rock crystal, Little Falls, New York.
- PièceWOK 18-150 - Quartz, var. Petrified wood, near Holbrook, Arizona
- 211 en plus...