Just when I think I won't find anything new.
The Moore is in terrific shape, have to find out about the nib, its a "Warranted 14K No.3" with decent tipping. Doesn't say Moore on it though. Cap has Pat Pending imprinted on the side. "L-93" Stamped in the barrel end.
The Diamond Point I suspect is one of the later, cheaper ones. Has a nice clear section window, the nib slit is off center and the tipping looks like rolled steel.