The PKM weight I referred to above was actually an image sent to me by somebody in America in early 2004 (or late 2003). From a copy I still have in a document on my pc, here's what it looks like:
- Mottled dark blue ground.
- Central motif of three rows of canes.
Inner ring of 5 canes each with yellow coating around blue 8-point daisy, around tiny core cane of orange over yellow over blue with white central rod. Then 5 "squashed" open-centred pale "grey-purple-ish" daisy canes set one to each outside junction of inner ring canes. Followed by 11 purple-over-white daisy canes set with some form of complex cane to their centre.
- Outer edge of weight has 6 canes identical to inner row (Yellow-Blue-Orange etc) spaced in same way as the other two weights shown here. "PKM" letterig set in same position as other two and formed in the same way.
- Several air bubbles throughout the dome.
If I can find the original email, I will contact the person and see if there's any more info on it.