RC Tank Warfare community hobby forum

I've recommended this one a few times to people who asked about Panthers over the years, full of colour illustrations and the little tiny details that make the difference between your model being a generic Panther and specific Panther:
https://www.panzerwrecks.com/product/pa ... n-changes/
Currently £10 off, from a highly reputable publisher/store that I have dealt with for many years now...
(No, I am not on a commission here, this book really is that good)

anything from Panzer wrecks is superb reference.