Home WILDFLOWER. Matrix Ballroom Neon Rose Contact Us for Price Stock Status: In Stock Neon Rose Vintage Poster. Victor Moscoso Information Matrix Ballroom 3rd March - 5th March 1967 Catalogue No. NR-9 This vintage second print poster is printed on white index stock and measures approximately 14″ x 20″. Mint condition. The artist is Victor Moscoso and the performers Wildflower