Reserve not met No Image Lot 1 Umbra Set Of 6 Prisma Wall Décor Art - Unchecked & Boxed. 1Umbra Set Of 6 Prisma Wall Décor Art - Unchecked & Boxed. Shepherds Auctions Umbra Set Of 6 Prisma Wall Décor Art - Unchecked & Boxed. Add to watchlist Timed