Pete;
I appreciate that posting. I had long suspected the tubes on my Modified Diana Pieper were screwed into the block but had no reference. This shows that at least some were. I am still confused as to the Demi-Block marking on Emilio's Original Diana. All references I have seen to the Pieper guns using tubes seperate from the breech block refer to a "Single Breech Piece" or what we refer to today as a "Mono-Block". All references I hjave seen to a "Demi-Block" indicate Chopper Lump construction in which an entire bbl & half the lumps are forged from a single piece. It is hard to imagine they would have made the breech piece in two parts, joined them & then tubed it.
