Design drawings for rings
| Image |  |
|---|---|
| Description | drawing by Philippe Wolfers (21.114) |
| Author/s |
creator: Philippe Wolfers |
| Publication date | |
| Language | |
| Country of origin | |
| Wikipedia link | |
| Copyright status |
public domain in countries with 70 years pma or shorter. |
| Missing/wrong data? | Edit Wikidata item |