I have his book. If you are serious about Contax II information I would not buy the book. Though there are some diagrams it fails to show or describe how to set up a Contax II or repair the shutter. The exploded diagram of the wind up unit is valuable if you take it apart to clean it and do not make note of how it goes back together. The operational descriptions with the delay mechanism are misleading and there is not any significant description of how the escapements operate or can be adjusted. It is amazing to me that in all the information, even on line, there is a dearth of information about how to set up the 2nd curtain so that 1/1250 can be obtained, with all the rest of the speeds, using escapements engaging at the appropriate times. This depends upon the small gear that the 2nd curtain engages and rotates when winding. In addition the large gear teeth must be set up appropriately. If you are not lucky enough to have just to put new ribbons in, it will take some time to come to this conclusion. Unfortunately some Contax II , when the ribbons break at the usual spot, at the top, have curtains that rolled beyond their normal distance so setting up the shutter crate then becomes a job for a technician. I have operated the shutter crate without the 1st curtain with the 1st curtain springs -(without) roller installed and can tell you that the information on the internet about the disengagement of the escapements is way off. There is compensation for the escapements releasing within the film aperture by way of the spool up of the 1st curtain with a leather strip on the 1st curtain roller which happens to be just about the same number of millimeters wide as the 2nd curtain travels into the film aperture without being released from the escapements.. IMHOP this is done to create accelerations of the curtain to obtain an even exposure. I could be missing something, and I am not an engineer or learned camera repair person, Math and measurement and my own eyes can tell me when a shutter escapement releases in the film aperture. I happen to have worked on several Contax II and Kiev cameras and their shutters all operate the same.
By the way, I have the book in Russian. It does not appear to be a pirated copy. My Russian language skills are not that of a "native reader" but I am able to do some translation, spending time in his chapter on the Kiev/Contax II since that was the only chapter I was interested in.