Attributed works:
42. The Cupola and Spiral of S. Ivo alla Sapienza, Rome, by Francesco Borromini. 1642-60.
Attributed works:
43. View of the Sapienza, Showing the Unfinished Cupola of S. Ivo. Etching, 1652, from J. VAN Meurs: Afbeelding van t'nieu Romen, Amsterdam [1661] (Avery Library, New York)
Attributed works:
44. The Lantern and Spiral of S. Ivo alla Sapienza, Rome, by Francesco Borromini.
Attributed works:
45. Project for the Lantern of S. Ivo, by Francesco Borromini. 1651. Pencil, 25.7 by 18.6 cm. (Albertina, Vienna).
Attributed works:
46. Plan of the Spiral of S. Ivo, by Francesco Borromini. 1652. Pencil, 48.5 by 36.5 (Getty Resource Collection, Getty Research Institute, Santa Monica CA).
Attributed works:
47. Project for the Bultresses of the Dome of S. Ivo, by Francesco Borromini. 1652. Pencil, 24.4 by 20.9 cm. (Albertina, Vienna).
Attributed works:
48. Project for the Spiral of S. Ivo, Section, by Francesco Borromini. 1652. Pencil, 90.4 by 37.1 cm. (Albertina, Vienna).
Attributed works:
49. Plan of the Cupola of S. Ivo, by Francesco Borromini. 1651-52 or 1659-60. Pencil, 35.5 by 29.5 cm. (Albertina, Vienna).
Attributed works:
50. Elevation and Section of the Cupola of S. Ivo, by Francesco Righi. 1653 55. Pencil, 70 by 46.1 cm. (Albertina, Vienna).
Attributed works:
51. Elevation of G. Della Porta's Exedra in the Sapienza, by Francesco Righi. 1653-55. Pencil, 61 by 46.2 cm. (Albertina, Vienna).
Attributed works:
52. View of the Cupola of S. Ivo, Attributed to Domenico Barrière. 1653-55. Pen and Light Brown Wash over Pencil, 31.5 by 18.6 cm. (Kunstbibliothek, Berlin).
Attributed works:
53. View of S. Ivo, by Domenico Barrière. 1659-60. Etching, 36 by 25 cm. (British Library, London).
Attributed works:
54. View of the Cupola of S. Ivo, by Erik Jönson Dahlberg. 1656. Pen and Ink. (Kungliga Biblioteket, Stockholm).
Attributed works:
55. Allegory of the Temples of Merit and Honour, by Domenico Barrière. 1653. Etching, 18 by 12.5 cm. from A. Blancario: Ivonianum Templum sive de S. Ivone Pauperum Patrono Oratio, Rome [1653]. (Biblioteca Apostolica Vaticana, Rome).
Attributed works:
56. View of the Cupola of S. Ivo from Piazza S. Eustachio, by Lievin Cruyl. 1664. Pen and Ink, 38.3 by 48.5 cm. (Rijksprentenkabinet, Amsterdam).
Attributed works:
57. The Cupola and Spiral of S. Ivo, Photographed before the Removal of the South Buttress.
Attributed works:
58. Section Through the Spiral of S. Ivo, by Gilles-Marie Oppenord. 1692 99. Pen and Ink, 26.9 by 19.6 cm. (Kunstbibliothek, Berlin).
Attributed works:
59. Project for the Cupola and Lantern of S. Ignazio, by Orazio Grassi, S. J. 1650-51. Pen and Ink. (Biblioteca Apostolica Vaticana, Rome).
Attributed works:
60. Observations of Sunspots, by Daniel Widman. Etching, in C. Scheiner: Rosa Orsina Bracciano [1626-30]. (New York Public Library).
Attributed works:
61. Southeast Portal of the Sapienza, by Francesco Borromini. 1664 65.
Attributed works:
62. Sketches of Ornaments from the Sapienza, by Gilles-Marie Oppenord. 1692 99. Pen and Ink, 26.9 by 19.6 cm. (Kunstbibliothek, Berlin).
