Sorry.... 1/16.
Thats annoying.... I thought they were all compatible.
I,ll try and get some pictures. I doubt anyone will recognise them though....the chevrons were ground off, there are big holes bored in the middle of each link and they are down to bare metal for the most part.
I will have to modify the sprockets anyway so I may try getting them to work before I start buying new obes.
Needless to say, they wont be going on a sherman.....
P