1. Test pieces Artist: Hesse, Eva Classification: Sculpture Materials: 10 units: 3 metallic hemispheres (2 silver caulking material over 1/2 hollow rubber ball, 1 silver caulking over 1/2 solid rubber ball), 1 natural rubber hemisphere, 6 natural rubber hemispheres with varying degrees of pigment Dimensions: 1 to 1 1/2 h x x 2 1/4 to 3 1/4 in. Accession Number: 1979.17.27.a-j