Chinese unknown cameras

At:

https://vk.com/stariefotoapparati?z=photo-34301331_456255750%2Fwall-34301331_70547

One can see the future translation to Russian from Niken Vorojittski
The extremely interesting "Collection of Chinese Photo Cameras and Their Descriptions" originally in Chinese from Wang Shiyuan.

Hello Luiz,
which Chinese secret service cameras are included in the book?
Detlev
PS Please correct your email address

I don't Know. all I know is about the published site.
As we see, pubilcation depends on the end of translation, and cost will be known after 2/3 full translation.
I am following posts.
The book will have 250 pages.
Regards
LP

I don't think either of them are as "pretty" as the original russian ones.