Very handy slide viewer from Germany by Cenei used for slides with 7×7 windows (so 6×6) slides. It comes with a trafo build in so it does not need power cells. It has a European power plug but when needed I can included a US plug changer. Still in the original box (bit rough). It is checked and working. Some signs of use but no cracks or chips, straight from the 1960’s. Slide goed in on top, out on the bottom by release button on front. Side button is for light. Box measures 21×17 cm or 8×7 inches. Check the video for the real manly way to few your old slides.