I-O-U fifty pounds, signed Leonardo da Vinci.
7 seconds sound clip from The Goon Show, Series 9, The Mountain Eaters classic radio program.
You can hear this line at 00:07:51 in the radio play.
Quote context
[...]
- Oh boy, my conk is still getting the breaks!
(english radio show crowd applause)
- Part 2 - the Louvre. The well-known double entendre and comic's resort.
- Ah yes, here is the Mona Lisa, and look Wal, what honest men those two were.
- Yes.
- There you see, the corner, you see, that the paint's still wet.
- I-O-U fifty pounds, signed Leonardo da Vinci.
- Hullo, let me stop messing around and we'll get on with the show.
- Oh, that's the end of that. Haha.
- Well, I'm dressed for the part. I'm going to conquer Mount Snowdon.
[...]