| Section 4: Money simplifies trade | Previous Section | Main Menu | Next Section |
| Money comes in all shapes and sizes because it's defined by function, not form. It can be any item or commodity that people agree to accept in trade. | ||
| Gold cowries | Gold dog | |
  |
 |
|
| Chi tao | Sheckel | Widow’s mite |
 |
 |
 |
| Spoon | Toweelah (hairpin) | Aztec hoe |
 |
 |
 |
| Gold spade | Gold eagle | Fish hook money |
 |
 |
 |
| Tree money | Unbroken money trees were good luck | |
 |
 |
 |