Need to ID an old microscope

SOURCE: my tasco microscope light will not turn on and the battery pack

sometimes when a battery causes corrosion inside something, you can clean off the springs or contacts where the battery goes. if i can, when that stuff happens i use sandpaper or something like that to clean the contacts. you cant always get sandpaper where you need it though. just try to find something to like scrape stuff off if its on there

SOURCE: I found a tasco microscope at a garage sale.

Most of the Tasco microscopes that operated on batteries used AA batteries.