Ok, So first up is the COO guide for reference against the following photo's. The box in the bottom left shows the 4 different heads available, and the white numbers relate to the COO's with which they appear on...Walrusman COO guide :
These first 3 sets of pics are the 3 different HK COO's, in order. All HK COO's have light blue limbs and matt black boots, and they can be found with both narrow and wide stances...HK COO 1
...HK COO 2
...HK COO 3
Next up are the NO COO scars, and there needs to be a little sidenote here. There has been sold a variant of the following COO as MID GREEN / WHITE TUSK, however, the seller I saw sell said figure is far from reputable in my eyes, and it is an easy figure to "create" involving a simple headswap from the pink tusk variant and replacing with a white tusk head. Seeing one MOC would help, but I'm not holding my breath
The DARK GREEN & LIGHT GREEN skin tone variants have darker blue limbs together with glossy black boots. The MID GREEN is the same as the HK COO's, in that it has lighter blue limbs and matt boots.COO 4 - "NO COO SCAR"
Next up, the three "1" COO's, and again, The DARK GREEN & LIGHT GREEN skin tone variants have darker blue limbs together with glossy black boots. The MID GREEN is the same as the HK COO's, in that it has lighter blue limbs and matt boots. ...COO 5 - ":1"
And finally, The two figures marked with just two small dots, both having darker blue limbs and glossy black boots. The LIGHT GREEN variant of this COO has the wider stance...COO 6 - ":"
Group shot of all 14 (Until I can be bothered to take a better one)...Back row left - pink tusk HK COO's
Back row right - white tusk HK COO's
Middle row left - NO COO SCARS
Middle row right - ":1"
Front row - ":"
Updated photo of NO COO variants;
Left to right, NO COO scar dark green, NO COO scar mid green, NO COO scar light green, ":" COO dark green, ":" COO mid green, ":" COO light green, ":1" COO dark green & ":1" COO light green
I have purposely not used terms like PBP, TRUE PBP, MECCANO, PBP/MECCANO, PAL, PBP/PAL, EURO, TRI, etc, As its pretty confusing, and opinion seems divided on the origin of a lot of these pieces anyway.
What I do know is that if you like COO's, you should like the above
If have anything to add, e.g. If I've missed a production variant or whatever, or you simply want to discuss these variants, then speak now or forever hold your peace