This is a Pre-Cop-Tic #10 Jewelers Loupe Magnifier . I assume it is 10x power. It is easy to use, nice bright, sharp image. It measures 2" x 1 1/2" x 1" wide. It can be used folded or unfolded. Nice Condition. I cleaned the glass inside so that it is clear with no haze. The base is Bakelite. Anybody know what the name means?