There is a unique head variation for the Luke Taiwan COO. Notice the elongated chin, compared to the more familiar head similar to the Hong Kong Figures, The elongated chin head appears to be more common than the more traditional molded head. My suspicion is the left two shown are ROTJ era figures, where the far right one is an early SW release 12 back TAIWAN release. The
Figure also has either a bar in the slot int he arm or no slot. And a few other differences which I have updated in the newest revisions of my figure guide.
12 back Taiwan figures are relatively hard to find compared to the Hong Kong figures, Luke, Leia, R2, Darth and Chewy were also released on 12 back Taiwan Cards.
To answer a question from a collector, No Luke’ s From China are not fakes.