Volume 291a of Rudolf Steiner's Complete Works
Section of the the Complete Works:
Lectures on Art

German Title:

Farbenerkenntnis. Ergänzungen zu dem Band «Das Wesen der Farben»

Title in Literal English Translation:

Knowledge of Colors. Expansion Volume to "The Nature of Colors"

Notes on the German Editions:

Known Lecture Dates in the German Volume:

English Publishing History:

Online Sources:

If volume 291a of the Complete Works is available online in the RSArchive, it will be here. (If not, you will get the main page listing all the books that the archive currently has online.)

Other online sources: None known.

The information above is believed to be accurate, but may not be complete. Translation of GA title by Daniel Hindes. Assembled by Daniel Hindes with much help.