This is listed in the category "Milson-Worth" , but this is not a Milson-Worth bird cage . It's a Lindhorst-style bird cage , made by a number of different magic manufacturers (including Owen Magic Supreme) but not by Milson-Worth. The Milson-Worth cage was a different style. Also, you wrote: "The is the usual vanishing bird cage made famous by Harry Blackstone", but in fact Blackstone (Sr. and Jr.) used a different style cage, trimmed in red ribbon, not the type of cage that is pictured here.