Historical and Art Medals, Numismatic Books

Scotland, Edinburgh University, bronze award medals by A. Kirkwood (4), arms in trilobe, revs. wreath, named (Ordinary Mathematics, R.T. Dunbar, 1908-9; Natural Philosophy, R.T. Dunbar, 1908-9; Inter. Hon. Exp. Physics, Margaret P. White, 1913-14; Physics Final Hon[ours], R.T. Dunbar, 1914-15), all 52mm [4]. Extremely fine; in cases of issue [one case broken] (£80-100)

The J-phenomena and the quantum theory of scattering of X-radiation was investigated by R.T. Dunbar, an Edinburgh graduate, and Margaret P. White, whom he was to marry. Both worked for several years with the scientist Charles Glover Barkla (1877-1944)