This is a square framed version, which is the most searchable. Note : photo with hand for scale: Vintage Faux Stone Cast Resin / Plaster Acanthus Leaf Rosette Plaque Architectural Wall Medallion Depth. about 1" to 1.5" thick, made to look like carved limestone but it's actually plaster / cast stone / resin composite. • Decorative acanthus plaster cast plaque  • Plaster Rosette for Wall, Ceiling  • Classical Gypsum Wall Medallion, Handmade Plaster Relief Plaque  Classic decorative wall plaque finished in antique white. Features an ornate floral relief for a timeless look. Adds elegant texture and charm to any room. Lightweight and easy to display. Antique white complements neutral and traditional interiors.