I don't have a copy of Truitt's so can not compare. I am planning on popping in to Broadfield house though next month for another look around, hoping there may some sort of clue that may be useful there. Interesting re cut and polished rims, not something I had considered. I don't think this has been cut down, just judging by the proportions but never say never.
Not finding much online attributed to Welz that is similar in style.
What strikes me about this vase is it's precision, it is very well executed.