A two-volume set.

Vol. 1:

Title: LA | GERUSALEMME | LIBERATA | DI | TORQUATO TASSO | Tomo Primo | {vignette} | IN PARIGI | M.DCC.LXXI | Appreßo { Agostino Delalain. | Pietro Durand. | Gio: Claudio Molini. | Droüet ∫crip.

Pagination: ffl [1] 2-331 [332] bfl; illustrations after Gravelot: frontis. by Henriquez, t.p. vignette by Patas, engraved dedication by Le Roy, 10 head- and 7 tailpieces by Le Roy, 5 full-page vignettes by Le Roy, and 10 plates by: Baquoy, Duclos (3), Le Roy, Lingée, Née, Rousseau, and Simonet (2).

Collation: 8vo; A-V⁸ X⁶.

Vol. 2: 

Title: LA | GERUSALEMME | LIBERATA | DI | TORQUATO TASSO | Tomo Secondo | {vignette} | IN PARIGI | M.DCC.LXXI | Appreßo { Agostino Delalain. | Pietro Durand. | Gio: Claudio Molini. | Droüet ∫crip.

Pagination: ffl [1] 2-340 bfl; illustrations after Gravelot: frontis. by Henriquez, t.p. vignette by Mesnil, 10 head- and 6 tailpieces by Le Roy, 4 full-page vignettes by Le Roy, tailpiece by Ponce, and 10 plates by: Duclos, Henriquez, Leveau, Lingée, Massard, Née, Patas, Ponce, Rousseau, and Simonet.

Collation: 8vo; A-X⁸ Y².

Size: 21.5 x 14.5 cm. Size of the copy sold at Sotheby’s in 2015: 23.3 x 14.0 cm; Christie’s in 2008: 23.2 x 14.4 cm

Page size: 21 x 13.5 cm. In referenced sources, the page size is bigger than that. N. Ray gives 11 ½  x 8 ⁷⁄₈   inches or 9 x 5½ inches. Cohen and De Ricci do not bother to give sizes, considering that octavo is octavo. MFA: 30.3 x 23.1 x 4 cm (11 15/16 x 9 1/8 x 1 9/16 in.)

Binding: Two volumes uniformly bound in full marbled calf, ruled in gilt, flat spine with gilt decorations and monogram, cream lettered label. Geoffrey Lord Cross of Chelsea [Geoffrey Cross, Baron Cross of Chelsea] (British, 1904 – 1989) bookplate to front pastedown.

Catalogue raisonné: N. Ray №22, p. 48; Cohen De Ricci 974-975

According to MFA printing by: François-Augustin Quillau (French, 1743–1804).

This edition was illustrated by Hubert François Gravelot (French, 1699–1773) and engraved by the following engravers:

Jean Charles Baquoy (French, 1721–1777)
Antoine Jean Duclos (French, 1742–1795)
Benoît Louis Henriquez (French, 1732–1806)
Jean Jacques André Le Veau (French, 1729–1785)
Charles Louis Lingée (French, 1748–1819)
Jacques Le Roy (French, born in 1739)
Jean Massard (1740–1822)
Elie du Mesnil (French, born about 1728)
François Denis Née (French, 1735–1818)
Charles Emmanuel Jean Baptiste Patas (French, 1744–1802)
Nicholas Ponce (French, 1746–1831)
Jean François Rousseau (French, born in 1740)
Jean Baptiste Simonet (French, 1742–1813)
Droüet (French, 18th century)