Archival Methods Onyx Portfolio Box - 9.25 x 12.25 x 2" - Black Buckram/White Lining Leica UVa II E82 and a Schmitt trigger to

and a Schmitt trigger to provide switching hysteresis for noise rejection

including at the interior of a car through the windshield or side windows

Its variable contrast designation permits working with multigrade filters for adjusting contrast during printing

UPC: 049383111354

It doesn't need a power source

Archival Methods Onyx Portfolio Box - 9.25 x 12.25 x 2" - Black Buckram/White Lining Leica UVa II E82 and a Schmitt trigger toArchival 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