I bought my buttons and sticks from the same guy (same auction as a matter of fact) and I got the sticks pictured in his auction. The only markings I could find on my sticks are a LS inside of a diamond stamped in the metal mounting plate, and cast into the dust washer.
I emailed him after they arrived asking if he could get 4/8-way restrictors or at least tell me the brand of the stick, He replied that he couldn't get the restrictors and had no idea what brand the sticks were.
Mine aren't bad sticks. the diagonals aren't that hard to get, and I've yet to have a problem with them on 4-way games. They feel pretty good, but the only problem I've had was one simi-defective microswitch that I had to take apart and repair.
The buttons are good. I cant tell any difference in feel between these or any other microswitch button out there.
-Harry