I have been given some slides which appear to be 3D and by their content, pre-1950.
Its hard to find any info by searching generally online, but on eBay I came across a viewer which is made the the same company as some of the slides in the box - Stereo-tach, and it looks like it would fit them.
Can anyone tell me how these slides were photographed - I mean, the kind of camera (or attachment?) and how I might go about dating them. Is there any way to digitize these? Or not, since both 'eyes' are on the same 35mm patch. Some are really interesting, such as Havana nightlife.
thanks!