These 18 x 24" Pre-Cut Beveled Exhibition Mats from Archival Methods are made from bright white 100% cotton museum boards. The 4-ply beveled window has a 2-ply backing board hinged to the window on the long side with linen tape. The window openings are centered for either vertical or horizontal use.
- For 13 x 19" (330.2 x 482.6mm) picture format
- Sized to accommodate 2 x 3 print ratio