From episode #25, The Case of the Empty Tin

John Lowell begins reading this ad to Doris Hocksley. Lowell's eyes give out and . . .

Doris finishes reading the ad.

Near the end of the scene, Lowell tears off the corner of the page and hands it to
Doris. Curiously, there's no printing on the back.

Here's a close up of the clipping in the scene above taken from a DVD. There's
definitely printing on the back, but it still looks a little fishy imho.

[Trivia][Perry Mason TV Series]