Hi everyone,
I hope this is the right place for this question. I just found this cool old projector at a estate sale but have no clue what it is. I was hoping one of you may be able to share your knowledge...I have tried researching in the google search sites but just come up with 35mm slide projectors and I know it's too big of viewer for that. It seems that it would be for those old time double slides. It has the name Konislide on the side of the machine but no date or serial number or any other information. I really appreciate any information.
Thank you,
Jill

Konislide was the name of the projection line from Konishiroku (Konica). It's probably configured for 2 1/4" slides (120 size). You load one while the other is projecting. I'll guess at 50 years old (it has to be post WWII).

Doug,
You are a wealth of information! Thank you so very much :o)
I love this site, thank you for providing it...all members have just been wonderful.