Japanese Chromatropes and Slip Slides for Large Magic Lanterns

These are seemingly from a showman's set. They are numbered.
Some of the discs are apparently Western. It is quite probable that discs were imported and assembled into Japanese wooden cases. I have seen other examples that support the hypothesis, but so far there are no written records to be found.

Other chromatropes I have also came with exactly the same wooden cases and cranks. They are all professionally made with high quality images.
The wood used for these slides is not mahogany. It seems to be "hounoki"(a kind of Japanese magnolia tree) , a familiar material for curving. Surface is tinted to resemble the color of mahogany but the original wood texture can be found inside.
The design of the wood and the metal part is clearly Japanese.

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