Acme-Lite Hand & Table Top Viewer No. 77

I picked this up at a local thrift store. I am a sucker for anything in it's original packaging so I bought it. In the box was the original bill of sale from Tallahassee Camera Center Inc. for the viewer and 2 C Cell batteries. The batteries were still in the viewer when I looked in the battery compartment. Suprisingly there is no corrosion on the inside of the device. I'm not sure if it works as I don't have any slides to use with it. The box also contained the original instructions. It is stamped "Made in Hong Kong" No. 1203 on the bottom.