The background is heavily glazed. The cat image at the center is unglazed, although there are a few glaze spots on the animal's. On the back is incised "Jacomena R3"
Photo can be found at home.comcast.net/~mike_helland/indexes-and-checklists
Rectangular (Mini)PZL4541 Waconia Pure Sorghum (probably 1972)
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All four encased in gold metal frames there is a autobigraphy page ont he back of one of them explaining the nature of his work and how it came to be the dates are 1978 all four illusions of SAnfransisco all stencils and on orginal sketch paper ... undoubtfully originals and not prints! This must make quite a difference in worth and value,