I think I can see the proportion and layout differences that I tried to describe, but try as I might, I can not see the rolling breech block or a space that it would occupy. Basically, all Bullards show a distictive pretty symmetrical semi circle appearance that's formed by roughly half the rolling block contour and half the hammer contour.
On my screen, only the hammer shows and it seems to seat fully into the back of the receiver. No arguement from me, only a friendly discussion about the topic. There aren't many around, but they always seem to say quality, at least the ones I've seen. Good luck tracking one down.
