No mark between stud 2 and 6

Pip 5mm wide

Pip 6mm wide

a

Pip 8mm wide

c

Pip 5,5mm.

1mm recess on edges around center. No dot-pattern inside center ring. 7mm pip.

Pip diameter 4mm

7mm pip - recess 3 from left/top in upper right quadrant small sloped

a