| Classification: | Majuscule |
| Date: | 9th Century |
| Location: | London, UK, British Library |
| Shelf Number: | Harley 5684 |
| Content: | Gospels |
| Language: | Greek |
| Image Type: | Digital Microfilm |
| Material: | Parchment |
| Description: | Codex Seidelianus is a ninth century manuscript of the Gospels on parchment; 251 leaves, 2 columns, 21–24 lines per column. Digital images are from microfilm. For more recent images, please visit the British Library |