I found this interesting poem in a 1917 American Cutler magazine.
An Encomium of the Drop-Knife.
No knife is so slick,
It is quick on its trick
And a joy that will last you through life.
There is none 'neath the sun
Just like it, not one,
It's the Schrade Safety Push-Button Knife.
If the button is pressed
The blade does the rest,
Opens out like a thing all alive;
You break no thumb nail
In your efforts-that fail-
If you're owning this Push-Button Knife.
It's the handiest yet,
It is everyone's pet,
And with all good knife merits it's rife.
Its blades are rare steel,
And really ideal
Is this notable Push Button Knife.
It's the very quick pick
Of club, class and clique
Its equal they cannot contrive;
It's a true treasure trove,
And a thing you will love
Is this wonderful Push-Button Knife.
A. W. BELLAW, DeGroff, O.
Right under the poem is this:
The Schrade Cutlery Co. of Walden N.Y.,
advises us that it is in a position to make
immediately deliveries on its famous safety
push-button pocket knives.