SMITH-VICTOR
Model SS41
It has 5 rows to put your slides.
120 V.A.C. or D.C.
" CAUTION
DO NOT USE
LAMPS RATED
AT MORE THAN 60 WATTS "
" DO NOT FOLD
VIEWING SCREEN
AGAINST HOT LAMP "
Well, apparently the previous owner did NOT read that last warning
because a small part of the middle of the top row has some type of
indentation as if it MIGHT have been touched to the lamp or pushed in.
Not sure if it matters or if you can repair it but I will leave that decision for you ;-)
Meanwhile, we did plug it in and the bulb came on.