PAPER -- HEAWOOD, E. Watermarks, mainly of the 17th & 18th centuries. (Offset repr. ed. 1950, not revised). Hilversum, Paper Publ. Society, (1969). W. front.-portr., 154 pp. of text & 4078 examples of watermarks on 533 plates. Fol. Ocl. (Monumenta Chartae Papyraceai, I). -- W.A. CHURCHILL. Watermarks in paper in Holland, England, France, etc. in the 17th-18th c. & their interconnection. Amst., M. Hertzberger, 1967. W. 94 pp. of text & 578 examples of watermarks. 4°. Ocl. w. dust-j. (Dust-j. a bit worn/torn). -- (2).