Robert;
Yes that worked, thanks much. Unfortunately i do not read anything other than English, but could at least look at the pictures. From the pics DE 15138 1881 for bbl assembly appears to be virtually identical to US #246195, also 1881. Note this is the patent which inserts the tubes into the block from the rear thus they are full length through the breechblock. Not only the lugs, but also a section of the lower rib, the forend lug & a bbl spacer are all machined from that one block. This is the type which I believe is most generally found marked "Original Diana" & which has the step at the joint. I have not yet compared the lockwork patent with the US one & am not certain if Pieper patented his ejectors in the US or not. Again, thanks for the assistance.
