Powerdyne brake question

Anyone know what brand drum brake a Powerdyne would have used? The drum measures 4 1/4" inside. This is a survivor bike and I'd like to get an original as it will be for sale soon.
For some reason I remember looking at the brake on that bike and I think the backing plate had some Japanese name on it....but I forget what it was...:confused:
Damn I even found a close up pic I took...but I can't read it...:detective:

I'm almost positive it was a Japanese or Taiwanese name on the brake and sprocket.........shoulda kept that bike.