Sir, - We read with interest Frank McDonald's article (The Irish Times, April 14th) on "the violation of Kinsale" by ill-considered and inappropriate use of PVC fenestration on many of the town's historic and noted buildings. While we largely agree with the thrust of Mr McDonald's article, we feel that as architects to the most recent phase of development at Acton's Hotel, we must point out that all of the windows specified by us and subsequently installed are in timber and that our clients fully supported us in this. - Yours, etc.,Margaret WalshB. Arch., MRIAI,O'Riordan Staehli Architects,Douglas, Cork.