Simon Chadwick's
Early Gaelic Harp Emporium

Books by Joan Rimmer

Joan Rimmer The Irish Harp Mercier Press, Cork, 1969.
Secondhand 1st edition (1969) paperback, overall good condition. £35
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History of the Irish harp, starting (rather oddly) in the Ancient Middle East, then jumping to medieval Ireland and coming up to the mid-20th century revival. Gaelic Scotland is largely ignored. Includes notes on the medieval harps, 17th century sources, etc. It contains a number of useful b/w photos of many of the harps, including nice profile views of harps that are otherwise rarely illustrated. Though it is now rather out of date, it is still a key source and you should have a copy in your collection. 80 pages.