You know, rubbing stockings with a cake of soap is bad for them. And some soaps are strong... too harsh for delicate silk things.
10 seconds sound clip from the The 39 Steps (1937) classic radio play.
You can hear this line at 00:19:07 in the radio play.
Quote context
[...]
- I'll buy a big box of Lux and give it to her with the stockings.
- Now, that's a real Christmas gift, Betty.
- Okay, I'll get some Lux Flakes right away.
- And be sure to use nothing but Lux Flakes, dear.
- Oh, thank you, Aunt Sally. You're an angel to help me.
- Mother's the most perplexing person on my list.
- Stockings for Christmas and Lux Flakes for stockings... a perfect combination.
- We return now to Mr. DeMille and our play.
- Two days have passed and Richard Hannay, wanted for a murder he did not commit, is still at large.
[...]