Here is a link below that pictures 5 Goodrich Lantern Slides of the Waban Library Center that was envisioned / designed in 1928 and completed by 1930. Apparently this Goodrich fellow hung around for awhile...
My take is that a lot of the Slides that Goodrich produced were for educational purposes - and as many of you probably know - Libraries, schools etc. from that time period did not update to the latest & greatest technology every two weeks like they do now. Projectors & such were used until they fell apart... My take...
http://guides.newtonfreelibrary.net/...39&sid=4096765