"A total of one hundred plates prepared from drawings made at Wright's Oak Park studio illustrate seventy buildings and projects between 1893 and 1909 ... The plates include perspective views, plans, elevations, sections, and interior and exterior details ... Some of the drawings are by Wright; others are the work of his assistants. According to conversations with Lloyd Wright, the architect's son, the drawings were taken to Fiesole, Italy, where they wre traced in their original size and scale by a team of draftsmen including Lloyd Wright and Taylor Wool[l]ey working under Frank Lloyd Wright's supervision. The tracings were then photographically reduced or enlarged to a uniform size and the images transferred to lithographic stones for printing"--Sweeney (cited below), pages 15-16. The majority of the buildings are in the Chicago metropolitan area.
For detailed discussion of the drawings and a checklist of possible attributions, see "Frank Lloyd Wright and the Wasmuth drawings," by H. Allen Brooks, in Art bulletin, v. 48 (1966), pages 193-202. Brooks concludes: "Of the delineators, Marion Mahony was unquestionably the most prolific. Judged in terms of the Wasmuth drawings, she contributed nearly half of those which appear attributable. There are some seventy-one plates ... with architectural perspectives and, of these, at least twenty seem to be primarily by her hand. Wright may be assigned about half that number, [Birch Burdette] Long perhaps four, and [William] Drummond about two; [Harry] Robinson may have drawn about three. The remaining renderings are more elusive. They lack strong personal traits or may be the work of several 'hands'").
Portfolios contain 72 photolithographed plates numbered I-XIII, XIIIa, XIV, XIVa, XV-XXXI, XXXIa, XXXIb, XXXII-XXXIII, XXXIIIa, XXXIV-XLIII, XLIIIa, XLIV-XLVII, XLVIIa, XLVIII-LVI, LVIa, LVII-LXIV; and 28 photolithographed tissue overlays, attached to plates I, VII-X, XII, XV (2 overlays), XVI-XVII, XXX-XXXI, XXXII-XXXIII, XXXIV, XXXVII-XXXVIII, XLVI, XLVIII-IL, LII-LIII, LVII-LVIII, LX, LXII-LXIV. Plate LX with single linen-backed fold. Plates LVI and LVIII and overlays to plates XLVIII and LII not listed in contents; description of "Tafel LVIII. Deckblatt" pertains to the plate, not to the overlay, which is not described; overlay to plate LXI listed and described as "Lageplan und Grundriss des Hauptgeschosses," but was not issued.
Plates are printed on gray and white papers and translucent tissue paper with brown, gray, gold and white inks; papers and inks may vary among sets. Each has Wright's name/device blind stamped.