These shield shaped scales are a rivet-style or sewing-style scale. They can be attached to a leather or cloth backing using rivets, thread or wire.
You can vary the amount of overlap for these scales as desired. A general guide is that the tip of the scale in the 1st row is very near the top of the 3rd row. Using this layout you will need ~110 scales per square foot.
These scales were originally commissioned from TheRingLord as a custom shape for the movie Seveth Son
Click here to a download a 9 page PDF instructions set. These instructions include 2 techniques for using the scales that can be used to make any project. They also include 3 specific projects - the cuff, the messenger bag and the phone sleeve shown below!