He scrounged himself some high-powered Kraut lenses and a magnifying mirror and got Ronnie Bigelow from Barracks 2 to put the whole shebang together for a pound of coffee.

8 seconds sound clip from the Stalag 17 movie soundboard.

You can hear this line at 00:40:55.937 in the Blu-ray version of the movie.

Quote context

[...]

- What'd you expect for two cigarettes? Eight-year-old bottled in bond?

- All the house guarantees is you don't go blind.

- Blind? Harry! Harry! Harry, I'm blind, Harry. Harry, where are you? I can't see you. I'm blind, Harry. Harry. Harry, I'm blind.

- Blind?

- How stupid can you get, Animal?

- The killer-diller, of course, the real bonanza was when Sefton put up the observatory.

- He scrounged himself some high-powered Kraut lenses and a magnifying mirror and got Ronnie Bigelow from Barracks 2 to put the whole shebang together for a pound of coffee.

- On a clear day, you could have seen the Swiss Alps. Only who wanted to see the Swiss Alps?

- It was about a mile away, that Russian delousing shack, but we were right on top of it.

- It cost you a cigarette or a half-a-bar of chocolate a peek.

- You couldn't catch much through that steam, but believe you me, after two years in that camp just the idea of what was behind that window sure spruced up your voltage.

[...]