Jo Moran
I came across some extraordinary window glass in Whithorn, in the early 1990s, in the remains of a Northumbrian burial chapel. This was early material, similar to Roman, and still translucent.
In 1994 I found a cache of painted window glass on an excavation in Limerick. These were pieces dismantled from windows and piled in the corner of a passage, or under stairs, at St Saviours Priory. The glass was high medieval, and painted, but of poor quality (typical of the high medieval; potash rather than soda glass).
In 1997 I was asked to look at the large collection of painted window glass from Kells Priory, Co. Kilkenny, and present a report in the monograph (Clyne, 2007, 261-316). This was exceptional; most of my commissions are small, looking at a few sherds of glass from individual excavations.
A number of years ago I reviewed medieval window glass in Ireland (in Moss et al. 2006) and contributed a chapter to John Hearne's book Glassmaking in Ireland (2010).
Refs.
Clyne M (ed.), 2007. Kells Priory, Co. Kilkenny: archaeological excavations by T Fanning & M Clyne. Dublin.
Hearne J M (ed.), 2010. Glassmaking in Ireland. Dublin.
Moss R, O Clabaigh C, Ryan S (eds), 2006. Art and devotion in late medieval Ireland. Dublin.