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File consists of an etching of an abstract rose-like shape on a piece of thick glass, used in Astman's teaching. The work was created by Astman using masking tape and matte medium to cover parts of the glass before it was sandblasted, creating the etching. This work was one of numerous samples used by Astman to teach students about negatives and the variety of materials that can be used to create artworks.

File consists of an etching of a spiral on a round stone and a square piece of thick glass, as well as a sample of black vinyl from a vinyl flooring and tile company with "ART," etched into one side and the company name and other information in white lettering on the other side. Astman created the stone etching using a rock found in her garden.