Get impressed! two or a kind, what a beautiful eye-catchers in the room. The 2 large xl mirror glass pyramids/ obelisks are a design by olivier the writer. He is a brussels artist, born in 1958, a belgian "postwar & contemporary artist". Olivier the writer is best known for his mirror art. These large xl mirror pyramids are a one grinding design and only made in a limited edition. They are personally signed by olivier the writer at the bottom. Given the age still in good vintage condition (1 copy has a small crack in the mirror glass below) material: brass accents & antique mirror glass. i have official proof of authenticity such as vintage catalogs, designer records, or other literature sources and take full responsibility for any authenticity issues arising from misattribution