(a) Two barrels of various diameterspenetrating one another at right edges.
(B) Two chambers of various diameterswith obliquepenetration.
(c) A barrel joint a cone withoblique entrance.
(d) Acone and chamber with infiltration at right points.
(e) Two cones at right edges.
(f) Two square crystals of various sizes at right points.
(g) Two square crystals at sideways points.
(h) Sphere and cone at focus.
(I) Sphere and chamber flighty.
j) Sphere and barrel at focus.

Manufacturers and Suppliers of A Set Of Wooden Models On Interpenetration Of Solids Of The Following in Algeria, Argentina, Australia, Bahrain, Bangladesh, Belgium, Bhutan, Brazil, Cambodia, Cuba, Cyprus, Denmark, Ecuador, Egypt, Ethiopia, Finland, France, France, Georgia, Germany, Ghana, Hungary, Iceland, Italy, Japan, Jordan, Kenya, Kuwait, Malaysia, Philippines, Tanzania, Uganda