- FondsBeaton - Papers of Sir Cecil Beaton
- SeriesA - Correspondence
- SubseriesA1 - General letters to Beaton
- File301 - Dr Rudolf Kaetchen Kommer. Letters to Beaton.
- Item1 - Autograph letter to Beaton, from Salzburg
- Item2 - Typescript letter signed to Beaton, from New York
- Item3 - Typescript letter signed to Beaton, from New York
- Item4 - Typescript letter signed to Beaton, from New York
- Item5 - Autograph letter signed to Beaton, from Vermont