12 Caprices en forme d'etudes pour piano., composer Henry Kowalski (Mayence: Ches les Fils de B. Schott), [1875] Volume Hince 1 1544 Unit ID: 1544 Date: [1875]
12 coloured scenes of beautiful Perth, n.d. Box [unnumbered] Unit ID: 19XX/191 Date: n.d. Physical Description: 1 fold out postcard
12 colour photographs of businessmen receiving 1993 Export Awards, 10 x 8, not identified, 1993 Box 10 Date: 1993
12 colour snapshots of the party on the eve of the Madama Butterfly premiere in June 1997 - "breaking up" the design studio in the Opera Centre where the production had been "created" by Moffatt Oxenbould and the two designers, Peter England and Russell Cohen, 1997 Box 13 Date: 1997
12 cuttings concerning allegations of slavery in Fiji, visit of Sir John Thurston to Sydney, and death of Thurston, 1897 Date: 1897