My contention at the time of posting on the Blick Universal - without actually lining them all up together and comparing them - was that the Blick was much lighter and more compact than the German-made Adlers, and in turn the Canadian-made Empire, though all four are based on Wellington Kidder Parker's original thrust-action design (for the Wellington).
So here's the tale of the tape (and weighting machine), Rob:
Adler Model 7 - 23lbs, carriage width 14 3/4in, length 14 1/2in, height from boots to top plate, 5 7/8in.
Empire - 16lbs, carriage width 12 3/4in, length 13 3/4in, height from boots to top plate, 5 1/4in
Blick Universal - 10lbs, carriage width 12 1/4in, length 10 3/4in, height from boots to top plate, 4 1/8in
You will also note a significance difference in the typebar arrangement on all four machines, though less so between the Adler 7 and the Empire.
German-made or not German-made, the Blick Universal is decidely a differently designed machine from the Adler Model 7 and the Empire (and obviously the Favorit). It is markedly lighter and smaller. As I said before, I have not seen an Adler model or an Empire that looks quite like the Blick Universal, certainly not in terms of size.