"No. They were attached to a key-chain, which I always wear."
"Are there any duplicates of those keys?—the keys of the safe, I mean."
"No, there are no duplicates."
"Have the keys ever gone out of your possession?"
"Yes. If I have had to be absent from the office for a considerable time, it has been my custom to hand the keys to one of my nephews, whichever has happened to be in charge at the time."
"And never to any other person?"
"Never to any other person."
"What did you observe when you opened the safe?"
"I observed that the parcel of diamonds had disappeared."
"Did you notice anything else?"