Days of the Week, Sigils, Zodiac Signs, and the Heavens Ruled
[Reference from: Barrett, The Magus]
[Picture from: A Dictionary of Angels: Including the Fallen Angels by Gustav Davidson]

Sigil Examples for some of the better or well known Angels

These are the names of the Angels that preside over the Seven Days of the Week. These are also referred to as Seals.
[Picture from: Angels A to Z by Lewis and Oliver]

The Olympic Spirits and Angels of the Seven Planets

Includes their sigils and other signs.
[Reference from: Waite, The Book of Ceremonial Magic]
[Picture from: A Dictionary of Angels: Including the Fallen Angels by Gustav Davidson]