A few black hairs on the coat told me the lady's age. And a preparation on the hair revealed she had something to do with acting under powerful lights.
10 seconds sound clip from the Bullets or Ballots (1939) classic radio play.
You can hear this line at 00:41:17 in the radio play.
Quote context
[...]
- No, thank you. That's plenty.
- But... don't try to tell me you learned that from my coat. You probably followed me.
- Sorry, you're wrong. Here's how it was done.
- You were walking, because if you had been riding the powder would have been differently placed.
- It was in the morning because that particular powder will not look well on a brunette at night.
[...]