that photobucket page takes a Long time to load.
Not a flat crwon, a shallow sloping crown lets call it, that and the lugs are from Henry James, I don't know who designed them, not great when compared to the original investement cast designs that were pretty true to the stamped originals, with some mods. I think the author of these lugs will remain hidden for fear of Masi Mavines getting upset at them.
I do have one of these later bike, picked up for cheap, especially considering it came with Campagnolo SR reduced, build it up and ride it. They ride very well. You will probably find the extra weight is more of a head trip on the other riders in the bunch than you. And if you fall, you don't have to worry about the epoxy and or the carbon fibre....