Crystal model made of wooden spheres
1812-1900
Sixteen wooden balls some with brass wires protruding
1812-1900
crystal model made of wooden spheres
1812-1900
crystal model made of wooden spheres
1812-1900
Hexagonal prism
1812-1900
cones
1812-1900
Two similar blocks of wooden regular tetrahedrons
1812-1900
Cube with detachable corners
1812-1900
square pyramid made of spheres
1812-1900
cube built of spheres
1812-1900
triangular pyramids made from spheres
1812-1900
Crystal models made from wooden spheres
1812-1900
octahedron made of spheres
1812-1900
Spherical model part
1812-1813
Spare pieces for building crystal models
1812-1900
Crystal model made of cubes
1812-1900
Crystal model made of cubes
1812-1900
Four wooden regular tetrahedrons
1812-1900
pyramids and tetrahedrons
1812-1900
Crystal model composed of traingular and square based pyramids
1812-1900
Four wooden regular tetrahedrons.
1812-1900
Block of nine regular octahedrons
1812-1900
Octahedron made of octahedra
1812-1900
Spherical model part
1812-1813
wooden cylinder
1812-1900