Henry Bradshaw's Correspondence on Incunabula with J.W. Holtrop and M.F.A.G. Campbell

Valuable correspondence illustrating the birth of the modern method of incunabula studies, known as the Bradshaw-Proctor method.I. The Corrrespondence 1864-1884 (100 Letters)II. Commentary by W. & L. Hellinga The print edition is available as a set of two volumes (9789061949602).