Crystallographic solid model set with glass display case. Exceptional collection of 8 crystallographic solid models from the 1950-1960s, representing different geometric crystal forms used in mineralogy and crystallography. Each model is housed in its own white cardboard box, and the complete set is presented in its original green display case with a glass viewing window and a metal hinge-style clasp that allows secure closure and easy opening. The transparent lid makes it possible to appreciate the models without removing them from their compartments. These educational models were designed to illustrate the fundamental shapes and symmetry of crystalline structures, making them an invaluable tool for scientific study, teaching, or museum display. A rare and beautifully preserved example of mid-20th century scientific craftsmanship, this set combines educational value with vintage aesthetic appeal.