John Leech - Behind the scenes - Drawing. Public domain image.

Backstage, Mr. Punch in top hat and tails, looks at a gentleman identified as "Manager Pam," peeking through a hole in the curtain.
Caption, inscribed below title, reads: Manager Pam (Peeping through the curtain)."Really a capital house. You've a very good chance of success Mr. P nch." "What fun! How they're sparring for seats." "How they are squabbling for seats! Really, a capital house!" "Well! That depends upon what you bring forward."
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The published caption varies slightly: Manager Pam (looking through the curtain). "How they are squabbling for seats! Really a capital house!" Mr. Punch. "Well, you've a good chance of success, but it depends entirely upon what you produce!"
Title inscribed below image.
Bequest and gift; Caroline and Erwin Swann; 1974; (DLC/PP-1974:232.761)
Published in: Punch, April 4, 1857.