I am prob a bit under the pump....I offered to buy them, I wont see them first, I understand what can happen as I have lots of Canon glass 
The spelling is WETZLER on these ones...... I too suspect a German sounding name when Jap was on rise after ww2
The thing is, I have some cheap Chinese ones, and boy are they crapola.....as blury as except for centre.....we have some fences about 200 yards away, and it can be hard to workout what your looking at or what a person may be doing.....
My thinking was, I am hoping the older glass may kill the real cheap Chinese garbage on flea bay
I will be out 50AU dollars, or about 30 US posted to my place.
I should post a photo perhaps ? I wont be star gazing with them, I remember family had a 20x50 of german made, very clear I remember, but hard to hold still enough....lol...