I don't think the two sides of the coin are linked to each other that closely. On the coin posted in #76 is the same wheel-picture but a completely different picture on the other side (midget bribing a judge?).
The wheel with the broken axle could be flying through the air because of a crash someone had when speeding with his horse-cart (taking a risk). Maybe a bit far-fetched :). I have no idea how fast their horse-carts back then could go.
I'll see tomorrow if I find something about this coins on Google. I'm sure there is a plausible explanation. Gotta go now...
Let me know if you find out anything about either of these coins.