Mortice Lock Hat

The smaller circles within the larger circles that make up the motif of this hat remind me of the keyhole portion of a Mortice lock. In Canada, (where I live) Mortice locks aren’t often seen on doors and their most common application appears to be on furniture. Which begs the question- what do you keep locked in your coffee table? Is your coffee table actually not a coffee table, but a secret door that once opened leads to folding stairs descending to your subterranean spy lair? If so kudos’. Also, nice choice of lock.