Here are entered works on sheets or panels of wallboard made with a gypsum core covered with paper. Works on sheets or panels of various materials used as substitutes for wooden boards or plaster in the construction of interior walls and ceilings, including sheets or panels of plywood, fiberboard, gypsum drywall, and laminated plastics, are entered under Wallboard
Plaster casts -- Congresses : Plaster casts : making, collecting, and displaying from classical antiquity to the present / edited by Rune Frederiksen and Eckhart Marchand
Here are entered works on sheets or panels of wallboard made with a gypsum core covered with paper. Works on sheets or panels of various materials used as substitutes for wooden boards or plaster in the construction of interior walls and ceilings, including sheets or panels of plywood, fiberboard, gypsum drywall, and laminated plastics, are entered under Wallboard
Polymeric materials (usually organic) of large molecular weight which can be shaped by flow. Plastic usually refers to the final product with fillers, plasticizers, pigments, and stabilizers included (versus the resin, the homogeneous polymeric starting material). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Organic polymeric materials which can be broken down by naturally occurring processes. This includes plastics created from bio-based or petrochemical-based materials
