Vortograph: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Article title updated for style. | Nov 09, 2026 | ||
| Invalidated site: National Gallery of Canada - Vortograph. | Dec 03, 2019 | ||
| Media added. | Mar 27, 2018 | ||
| Add new Web site: National Gallery of Canada - Vortograph. | May 27, 2011 | ||
| Article revised. | Dec 17, 2001 | ||
| Article added to new online database. | Jul 20, 1998 |
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