I have pics of a caliper on a 15/16" if you need it. It's also the only chain I've seen snapped. Adding further..the gearset is not the same between the 15/16 and the 7/8 chaings. Pitch (I think it's called) is slightly off. Clearly ...as you know the chain touching is too stretched to use. ATSG book says you should have 1/8" or more to the case.