Thesaurus Term/Concept: SUNSHINE RECORDER
| Identifier | 93465 |
|---|---|
| Class | MONUMENT TYPE |
| Status | Preferred |
| Index? | Yes |
| Scope Note | A glass sphere in a metal frame standing on a small pillar. A card is placed behind the sphere which focuses any sunlight, marking the card and thus indicating how many hours of sunlight there was on that day. |