Camera-wiki.org has a great page on the history of Tougodo
(sometimes spelled Togodo).
A tear-down post is here.
Not much to show that’s not in the video. If I get crazy and try again, I’ll post more here.
Ilford SFX 200. Spooky backyard tree is spookier with ND & red filters (3 stops).
Kodak T-MAX 100. The truck window tint was just the right amount of filter.