For a sense of scale, notice that that 'fence' to the left of the lock is actually the railing for a floor. Yes, the lock looks to be about 2 1/2 feet (76 centimeters) tall!
Look closely at the picture, and you will see the key is on the ledge below the lock. The key is probably 15 inches (38 centimeters) long.
Wish I had seen it in person!
Gordon
