Quote Originally Posted by photomc
There are others, one from UK or Europe, but memory fails me now...know they are well thought of though.
I suspect you might be thinking of the British-made RRBeard; they two-bladed easels and massively made, although top and left borders do not offer fine width adjustment.

For smaller formats I also use a Elande which has been out of production for a long time; also two bladed, but the upper structure is a welded rectangle made out of rolled steel sections, and the blades are held at both ends by screws. Not easy to adjust, but once done, very accurate indeed.