Useful reference source...

...scans of the 'AFV Profile' series:

http://ciar.org/ttk/mbt/afv_weapons_profile_pack/

Like the 'Aircam' series from Osprey, these little monographs were very popular in their day, and I still have some I bought back then, in the early 1970s, including some of these and many more of their Aircraft Profiles plus a few of the Small Arms series. Dated, but even in the internet age, still a good source.

Oh, heaven for a modelling guy like me! Big thanks for sharing this Lima! Detailed pictures from the profile of tanks are harder to get then you would think! And lots of these books provide just that! I for example used the panzer iv book in this (amongst many others) series to help me out with both the jagdpanzer iv and panzer iv g/h

Here's what seems to be a potentially important and accurate reading about what really happened at Prokhorovka during the Zitadelle operation.

http://www.awargamersneedfulthings.co.uk/2016/10/demolishing-myth-by-valeriy-zamulin-and.html