I shouldn't be surprised if there were even some quinquagenarians in submarines and steam ships.
The only trouble is that being a quinquagenarian is a secret and almost a shameful thing; if you ask someone if they are a quinquagenarian you're likely to cause offence. And possibly even violence.
But here, to aid you in your quest, are some examples of quinquagenarians.
So what did they all have in common when these pictures were taken?
No, they didn't all have ocelots as pets, that was just Salvador Dalí; and only two of them have ever been presidents of large countries.
No: only two of them are paid for acting.
Yes, they are all famous, but that's not it.
Another clue: I have myself been one for several years.
What? Is no one guessing genius?
Ah, I thought not.
One more clue, then: no one, but no one, has ever been one for more than ten years.
Yes, that's right, you've got it. A quinquagenarian is someone in their fifties.
And, yes, you're right, this must be one of the most dangerous Spot the Frippets ever.
Still, it's your mission.
If you should choose to accept it.
Spot the Frippet: quinquagenarian. This word comes form the Latin quinquāgēnārius, containing fifty.