| Front | ad 1509 (TeLeSCoPe) |
| Back | 1509 Invention of the watch: essential to a modern economy and administration, this introduces the concept of regular timekeeping. |
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| Front | ad 1959 (LiP) |
| Back | 1959 Invention of the silicon chip is the major technical invention of the past century, making possible the computer age. |
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| Front | ad 1519 (TeLeTyPe) |
| Back | 1519 Cortes begins his conquest of South America, which becomes part of the wider world economic and political system. |
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