File including report on the discovery of monastic bell and grave slab at Templemoyle, near Athenry, Co. Galway; index cards of notes by Etienne Rynne; transparencies of images of bell shrines and copies of publish work on the topic of monastic bell shrines.

File includes notes, drawings and information on the Annagh Sword, Co. Mayo. Includes drawing of the sword with annotation on features made by Bernard Freyne; Correspondence between Joseph Raftery of the National Museum, Dublin, Etienne Rynne, Thomas Rea, Ballyhaunis, Co. Mayo (finder of the sword), Bernard Freyne, discussing varying matters such as the discovery of the sword, its provenance, ownership, sale, and transfer to the National Museum, Dublin. Also extracts of Ordnance Survey map for Co. Mayo outlining the area of the object's location.

File includes correspondence to Etienne Rynne from Sligo County Council regarding improvement scheme at Curry/Bellaghy Ring Fort at Bunnacrannagh, Co. Sligo. Includes transparency map of the site.

File of correspondence between Etienne Rynne and individuals regarding a cist-burial grave at Treanmacmurtagh, Co. Sligo. Letters are between various academics in archaeology at University of Glasgow (John Waddell); the Ordnance Survey, Dublin; the National Museum, Dublin (Joseph Raftery); A.T. Lucas, and others. Also includes a report written by Rynne on the site. Also includes a number of black and white photographic images taken of the burial site as well as maps and drawings of the site lay-out.

Files relating to research and reports of archaeological sites in Co. Roscommon.

Files relating to a report on the double-armed cross on the church at Killinaboy, Co. Clare.

File 1 includes a report on the double-armed cross, detailing the history and archaeological examination of the cross by Peter Harbison; (noted to be a contribution to the North Munster Journal); numerous letters between Harbison and Rynne discussing the research on the cross (and also letters between Rynne and members of the Cornish Archaeological Association, Cornwall). Manuscript research notes on landscape features of Killinaboy.

File 2 includes a number of black and white photographic prints of the double-armed cross at Killinaboy and also of a number of similar and related sites and objects, such as at Ardmore, Co. Waterford and Limoges, Kilkenny west, Co. Westmeath.

File 3 contains loose-leaf manuscript research notes, with text and sketches by Etienne Rynne relating to the double-armed cross at Killinaboy and similar crosses elsewhere. Also includes copies/extracts of some published research material used by Rynne on this topic.

File includes manuscript notes on Horizontal Mill at Inagh, Co. Clare. Includes hardback A5 notebook of work and research by Etienne Rynne on horizontal mills and also copies of other published articles on horizontal mills internationally, including one by A.T. Lucas.

File of letters between Etienne Rynne and the Office of Public Works and also the National Monuments Advisory Council, regarding work carried out by Rynne in surveying parts of Co. Clare for the draft development plan of Co. Clare.

File includes correspondence between Etienne Rynne and others concerning a ringfort at Kilquane, Co. Clare. Also includes a later (perhaps unrelated) report on window spandrels at Castletown (Doora) Castle, Co. Clare and also a report of a 'destroyed cashel near Ennis."

File includes MS drawing/map with notes made at a possible megalith at Scool Hill, Co. Clare, with excerpt OS map of the area. Also black and white photographic prints of the site taken by Etienne Rynne.