You went to Chester's because I found pollen from a cymbidium - that's a terrestrial orchid and Chesters is one of the few shops carrying it.

10 seconds sound clip from the Bullets or Ballots (1939) classic radio play.

You can hear this line at 00:41:47 in the radio play.

Quote context

[...]

- Sorry, you're wrong. Here's how it was done.

- 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.

- I guessed she was a star instead of an extra because the face powder, also found on the coat, was very expensive.

- 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.

- You went to Chester's because I found pollen from a cymbidium - that's a terrestrial orchid and Chesters is one of the few shops carrying it.

- You went to the Derby because I found a tiny spot of sauce used for a seafood cocktail.

- And it contained a trace of herb which I won't name, because the chef at the Derby claims that it's part of his secret shrimp recipe.

- You win, Mr. Gompert.

- But who was the girl?

- Well, that's for you to reveal.

[...]