2. Brussel, Koninklijke Bibliotheek Albert I, 1975, in-8°, 114 pp, many bw facsimiles, 187 items, index, sewn, orig.stiff wrapper. (Text in Dutch, Royal Library Brussels).
2. Bruxelles, Bibliothèque Royale Albert I, 1975, in-8°, frontispiece + 114 + (2) pp, 36 ills. (a few in red and black), index, stiff printed wrapper. Text in French. Publ. on the occasion of an exhibition at the Royal Library, lists187 items.
3. Bruxelles, Bibliothèque Royale Albert I, 1975, in-8°, frontispiece + 114 + (2) pp, 36 ills. (a few in red and black), index, stiff printed wrapper. Text in French. Publ. on the occasion of an exhibition at the Royal Library, lists187 items.