The Boy Mechanic, vol. 2, page 196
A very simple way to pull a staple is to use the claws of an ordinary carpenter's hammer and a nail, as shown in the sketch. The staple can be removed quickly without being bent, and no damage to the material into which it was driven will result.
“Whatever you do, work at it with all your heart, as working for the Lord, not for men.”
– Colossians 3:23