Soldiers playing boules (Protais)
This and the below images come from a book brought out for the Channel 4 series a few years ago - it is a visual feast though the pictures are quite small. The good thing about this book is it's very cheap - if you want a paperback it'll only set you back a few quid and it's worth it believe me. A good introduction but much more than that. A mini coffee table book at a pocket money price.