Formed lens tab for designation card insert

摘要

A flat, substantially transparent lens lying in a flat plane retains a designation card within a recess in a surface. The lens is made of flexible sheet plastic with means at either end for securing the lens in the recess. At one end, a tab is integral with the lens and has an attachment end which joins the lens. The tab extends away from the plane of the lens to a geniculation spaced from the lens plane. At the geniculation, the tab reverses direction and extends toward the lens plane to return generally to that plane, where it terminates in a finger grip.