| 摘要 |
<p>A pictorial display resides in the combination of a transparent polyhedron (16) and an opaque backing (14). The backing (14) is removably attached to the polyhedron block (16) by interlocking elements (46, 48) formed on the backing (14) co-acting with recesses (30, 32) formed in appropriate surfaces of the polyhedron block (16). Pictures (A, B) placed between the block (16) and backing (14) are dramatically viewed through the block (16).</p> |
