| Clue | Source | Date |
|---|---|---|
| Nickel's value | Universal | 16 Jan 2024 |
| Value of a nickel | Newsday | 22 Feb 2021 |
| Lucy's fee for psychiatric advice | ||
| Nickel | ||
| Recycler's reward, perhaps | ||
| "Dr." Lucy's fee, in "Peanuts" | ||
| Automat fare of old | ||
| Inscription under a metallic bas-relief of Monticello. |