Sorry, forgot about the KV-122.
So far I’m on page 150 in the book, in the chapter on the KV-2. I have to say it’s very thorough, and the unwritten motto seems to be: “pictures or it didn’t happen”. Every change in production is documented in several pictures. In some cases these are very good pictures. Apparently it was quite a challenge to find pictures showing unusual angles, like slightly from above. Most pictures of KV tanks were taken “en passant” by German soldiers, few of whom took a closer look to inspect technical details.
Also very nice are series of pictures of a particular vehicle, when available. These help greatly in demonstrating combinations of features for specific production batches.
I have on minor nit-pick, though: the KV “large turret” and the KV-2 model 1940 (production batch November/December 1940) had a thinner recuperator cover compared to the 1941 model. On all pictures I could find, the opening for the gunner’s sight in the upper right corner when viewed from the front was not surrounded by a recessed ring. Yet the line drawings all show that recessed ring.
I can only find this feature on the 1941 model, formerly called KV-2 second production batch. There the thickened recuperator cover shows the characterisitc grooves on the sides, to allow acces the the adjustment bolts. But it also had the recessed ring around the gunner’s sight opening.
I had already corrected that detail on Trumpeter 00311 (KV "large turret), which I’m currently building. I’ll also have to remove the second bolt on the top of the cover - the one in the middle - which was also model 1941 only.
Here is a picture before I fixed the gunner’s sight opening:
The same would apply to Trumpeter 00312, if you wish to back-date it to the model 1940. Neil Stokes’ “recipes” tell you to remove the grooves on the sides, but you should also apply the changes which I just described.