I'd guess Star also, most of the Pearls had "World Supreme Quality" or something similar on the badge. Most, but not all. I think that started around the mid sixties.
Hello,
Sorry to contradict (after all these years ...): World's Supreme Quality was a slogan used by Star, only. Not Pearl.
The Supreme drum kit from the TS is not made by Star: brackets of the floor tom leg, the cymbal arm mount at the bass drum, the bracket type of the bass drum legs, the angle adjustment at the rail consolette (with the holes in it) and, finally, the not typical design of the badge tell that this kit was made by any other MIJ company (maybe Hoshino Kougyou?).
Ralf