Volume 11 of the RSAI's Du Noyer Collection contains 381 sketches and watercolours. A number of items are undated, with the earliest year being 1839 and the latest year being 1868. The majority of items in the volume are from Co. Meath, although there are images from Counties Antrim, Clare, Cork, Derry, Donegal, Dublin, Galway, Kerry, Kildare, Kilkenny, Louth, Meath, Offaly, Sligo, Tipperary, Wexford, and Wicklow. Additionally, there are 2 images from England and 2 images from France.
Subjects in Volume 11 include architecture, heraldry, landscapes, sculptures, slabs, monuments, crosses, geology, dog, correspondences, still life, portraits, and megalithic tombs.