These .003 polyester “L” seals are designed to hold print formats from prior to the 1970s when 3 x 5 prints became common. Museums, libraries, and families all have scattered prints dating back decades. While the sizes are varied, we are pleased to offer five sizes which are designed to hold these treasured images. “L” seals are a convenient option, as it is easy to insert the images yet they remain securely in place once placed inside. We have also added some small boxes are available separately to hold the “L”-seals. Packages of 10.