Petri, Robert W. **H_.99B.303 Mikrobiblion; das Buch von den kleinen Biichern.
— Berlin. Horodisch & Marx. 1929. 174, (2) pp. 9% cm. Contents. — Kurt Freyer: Uber das sammeln kleiner Biicher. — Robert
W. Petri: Bibliographie der Sammlung Vera Rosenberg. No. 30 of an edition of 426 copies. The author's name appears only on page 30.
This card was printed at the Boston s Public Library, February 12 1930.
N6934 — Miniature editions. Bibl. — Rosenberg, Vera V. — Freyer, Curt, pref.