The collection is composed of:
- This is one of only two examples of Goethe's life-mask. It had been sent to Thomas Carlyle by J. P. Eckermann and hung in Carlyle's home for many years. On Carlyle's death it was presented to David Masson, Professor of Rhetoric and English Literature at Edinburgh, and on his death was given by the Masson family to Professor Hume Brown who in turn bequeathed it to Edinburgh University in 1918.
- Letter dated Weimar 17 June 1913 written by (possibly) Dr. W. Oettingen which indicates the origin of the mask, stating that it is a life-mask rather than a death-mask.
- Letter dated Edinburgh 25 April 1920 from A. Carlyle to the Librarian, F. C. Nicholson, Edinburgh University Library, indicating that there is incertainty as to when 'my Uncle came into possession of the Goethe Mask'.
- Letter dated London 28 April 1920 from Rosaline Masson to the Librarian, F. C. Nicholson, Edinburgh University Library, indicating uncertainty as to how the mask came into Carlyle's possession.