- Cut two strips of paper 1" wide and about 20" long.
- Lay the strips perpendicular to each other and overlap at one end and then glue or staple these ends together.
- Taking the strip at rear, fold it over the front strip. Then take the second strip and fold it forward over the first. Continue folding until the entire length is folded according to the illustration. To finish the chain, glue the ends.
- Pull the ends to open the ladder.
From The Delineator magazine, 1894.