This is COOL!!   Vintage 70's Optical Illusionary art by Manifestations Inc.   This piece is called Time Tunnel and is matted and framed.  Very cool OP Art effect with a metallic silver...when you look from a different angle, the picture looks different!  Reminds me of the effects in the Alfred Hitchcock movie Vertigo!    This measures 18.25" x 18.25".   Likely to be shipped via Fed Ex or UPS, so no PO Boxes please.