malikite? (spelling isn't right) It is 43 inches long and 18 3/4 tall. It is heavy don't have a weight. Not sure what the design is maybe Aztec?
My husband died and he told me he got it when he was a young man from some friends of his. They gave it to him because he liked it so much.
This is a vintage mid 20th century decorative wall panel that was made in Cuernavaca, Morelos, Mexico by Polish artist Michael Anthony Zarebski. Zarebski developed a crushed malachite stone polyresin composite from which to mold decorative wall art plaques that are based on Ancient Mayan or Pre-Colombian frescoes such as the Bonampak, Palenque, Yaxchitlan. The estimate is based on actual recent past recorded auction sales of comparables. Retail 'asking prices' can be higher and vary.