Check the listing for details. Tasco Big Screen Micro Microscope 40X Vintage Works 1992 New Open Box. Condition: Used. Listed at 20.00 USD. The Tasco Big Screen Micro Microscope with a magnification of 40X is a vintage piece from 1992 that is still brand new in its original box. Perfect for young aspiring scientists between the ages of 8-11, this educational toy allows kids to explore the world of science and nature through hands-on experimentation. The big screen feature enhances the viewing experience, making it easier to observe and study various specimens with ease.