Made from a combination of our lignin and sulphur free boards, archivalquality lining papers and cloth for the long-term protection of photographicprints, drawings, maps, charts and general ephemera. Each albumhas a capacity of 3 inserts (76 mm) and comes complete with 50 archival polyester pocketsand a matching heavy- duty slip case cover. We supply the polyester A4 Letter Album, having a special lever-arch mechanism in each case and a handytouch-lock system for holding the pages firmly in place. Pages are long side open and long side drilled. Useable Pocket area: 257mm x 312mm.