The Archival Methods Onyx Portfolio Boxes are often the best choice where presentation is as important a factor as storage and protection. This is particularly applicable for photographs, prints and similar art work that are in what we might call live storage, regularly presented or viewed but safely housed in between. Portfolio boxes have the appeal of being "lockers" that converts to a "stage." Ruggedly constructed and well sealed, Archival Methods portfolio boxes flip open to provide a handsome, complimentary background that enhances and frames the contained works.

Adhesive is pH balanced and buffered, <.0008% sulfur content. Covered in library quality F-Grade Buckram (poly-cotton) with a moisture-resistant, 100% aqueous acrylic coating. PAT tested and passed. Lined with 80 lb. acid- and lignin-free paper. Box core is Kappa binder's board (0.1), a bookmaking board with no glue between layers.

Manufacturer: Archival Methods. Date First Available: June 17, 2003. Is Discontinued By Manufacturer: No. Best Sellers Rank: #31 in Storage & Presentation Portfolios. Customer Reviews: 4.3 out of 5 stars 18 ratings 4.3 out of 5 stars. Item model number: 10-023. : B0018VAQG8. Item Weight: 3.68 ounces. Product Dimensions: 14.8 x 11.8 x 2.3 inches. Item Package Quantity: 1. Unit Count: 1 Count. Number of Items: 1. Pattern: Solid. Shape: Rectangular. Item Weight: 0.23 Pounds. Color: White. Brand: Archival Methods.