In the number “A Secretary is Not a Toy”  you can see an uncanny resemblence to the Sterling Cooper floor plan as the men in gray suits stroll up and down the rows of steno machines reminding one another that

A secretary is not to be
Used for play therapy.
Be good to the girl you employ, boy.
Remember no matter what
Neurotic trouble you’ve got
A secretary is not a toy. 

She’s a highly specialized key component
Of operational unity,
A fine and sensitive mechanism
To serve the office community.
With a mother at home she supports;
And you’ll find nothing like her at FAO Schwarz.

These play was produced in 1961.  The Tony Awards: Best Musical, Best Book; Pulitzer Prize for Drama; Drama Critics Circle Award were all snagged by it before the movie version came out in 1967. Aspirational lyricism!