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IG_258: Stucco and glass window with cypress tree and flowers
(USA_Cambridge_MITLibraries_IG_258_1)

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Titre

Stucco and glass window with cypress tree and flowers

Type d'objet
Dimensions
94 x 62 x 3.5 cm (with frame); 84 x 52 x 2 cm (without frame)
Artiste
Lieu de production
Datation
Early 12th–early 14th century AH / 18th–19th century CE (?)
Lieu
Numéro d'inventaire
Rotch Art Collection 7
Projet de recherche
Auteur·e et date de la notice
Francine Giese, Sophie Wolf 2025

Iconographie

Description

Rectangular stucco and glass window with a green cypress tree surrounded by symmetrically arranged yellow, red, and purple flowers. The motif is divided by laces with blue dots into five polygonal fields. The decorated area is surrounded by a segmental arch, which is indicated by a thin incised line. The spandrels above the arch are undecorated. The cypress tree and the flowers are worked out in relief against a perforated background that lies 10–12mm below the surface.

Code Iconclass
25G3(CYPRESS) · arbres : cyprès
25G41 · fleurs
Mot-clés Iconclass

Matériaux, technique et état de conservation

Matériaux

Gypsum plaster; colourless glass; coloured glass (green, blue, yellow, purple, red flashed glass); wood

Technique

The window consists of a latticework carved into a rectangular stucco panel and inlaid with colourless and coloured sheet glass. It was made according to the traditional technique used in the manufacture of qamarīyāt in North Africa up to this day. The rectangular stucco panel is produced by pouring gypsum plaster into a wooden frame. Once the stucco has set, the latticework is carved out using sharp, knife-like tools and following a template incised in the surface of the panel. The openings in the stucco lattice are then covered with the pieces of glass cut according to the design. The pieces of glass are fixed onto the back of the panel by embedding them in a thin layer of gypsum plaster.

The average thickness of the stucco panel is 20mm. The thin layer of gypsum plaster on the back of the panels is 1.5–2mm thick. There are traces of a shiny, brown, glue-like substance, which suggest that the pieces of glass were stuck onto the latticework with an adhesive before pouring the embedding plaster. The window is preserved in its original wooden frame. The dimensions of the frame are c.50 x 50 x 35mm.

The design of the latticework has two levels. The main motif (level 0) is worked out in relief against the perforated background (level –1), which lies 10–12mm below level 0. The incised lines of the preliminary drawing are visible in some places. The irregularly spaced, slightly conical perforations were pierced with a metal or wooden pin in the stucco before it was fully set. They vary between 8 and 12mm in diameter and are slightly tapered towards the back. The distance between the holes is 3–8mm. All the holes are backed with colourless glass. The main design and the perforations have been worked in such a way that the incident light is directed slightly downwards into the room. The oblique cut is more pronounced in the upper half of the window.

The coloured glass is 1–1.5mm thick; the colourless glass is slightly thinner (c.1mm). Several pieces of glass are replacements with a thickness of up to 3.5mm.The colourless as well as the coloured glass sheets from which the pieces were cut were probably mouth-blown. Elongated, parallel bubbles in the coloured glass indicate that the glass sheets were possibly made using the broad-sheet method. The surface of the coloured glass is very smooth and shiny. Several pieces of glass show scratch marks along the edges, which testify to the use of a glass-cutter.

Etat de conservation et restaurations

The stucco and glass window is preserved in its original frame. The front of the stucco grille is unevenly coloured or patchy; this is partly due to dust deposits. The latticework only shows a small number of small cracks and superficial losses. Only a few pieces of glass are missing. There are signs of repair on the front of the stucco panel; losses and fissures in the latticework have been filled with plaster, and the fills are painted to match the colour of the stucco lattice. The date of the restoration is unknown.

Historique de l'oeuvre

Recherche

This stucco and glass window shows similarities with two qamariyyāt with the same motif that were documented by the British architect James William Wild (1814–1892) during his stay in Cairo in the years 1844–1847 in the house of the British physician and collector Henry William Charles Abbott (1812–1859), as attested by two of Wild’s drawings; see IG_438 and IG_444. There are striking analogies in terms of the division of the motif into polygonal fields; one of the drawings (IG_438) even shows dotted laces very similar to those in the window discussed here. However, despite these similarities, it is unlikely that this window corresponds with the one shown in the drawing, as there are differences in the representation of the flowers and the tree.

Although flowers and cypress trees are very common motifs for qamariyyāt (see for instance IG_2, IG_173, IG_289, IG_355, IG_499 ; and IG_10, IG_169, IG_254, IG_257), the overall design of the window discussed here appears to be a rather rare composition that cannot be found in any of the other windows studied within the project.

From a technical and iconographic point of view, it can be assumed that this window was made in an Egyptian workshop during the late Ottoman period. However, the manufacturing characteristics of some of the coloured pieces of glass suggest that at least some of the sheet glass was not produced locally. The pieces of glass show the characteristics of cylinder-blown sheet glass, a technique that was unusual in artisanal glass production in Egypt, but widely used by the European glass industry. Interestingly, the Hungarian architect Max Herz (1856–1819) states in 1902 that sheet glass was imported to Egypt from Europe from the 19th century, because local sheet glass production had come to a standstill (Herz, 1902, p. 53).

According to the MIT Libraries’ records, this window was acquired by the Boston architect Arthur Rotch (1850–1894) together with three other qamariyyāt (IG_259, IG_260, IG_261) in the 1860s or 1870s. However, since he was still of a young age in the 1860s, we assume that he bought the windows at a later date. All four windows show the incised segmental arch and undecorated spandrels. These similarities support the assumption that they once formed a group of windows that were probably made in the same workshop. Traces of weathering on the surface of the latticework suggest that the window was exposed to the elements.

Arthur Rotch studied at the Massachusetts Institute of Technology (MIT) from 1872 to 1873, when the American architect William Robert Ware (1832–1915) was head of the newly created Architectural School. Just as other MIT students, Rotch was a trainee at his teacher’s architectural firm, and he continued working at Ware & Van Brunt as a draftsman after completion of his studies in 1874 (Chewning, 1979, p. 26). Interestingly, William Robert Ware also had a collection of stucco and glass windows. He had purchased them in 1890 on the art market in Cairo. In 1893, he donated 17 qamariyyāt to The Metropolitan Museum of Art (see IG_169, IG_171–186). Due to the lack of documentation, it can only be assumed that the one knew about the other’s collection. It also remains unclear where Arthur Rotch’s enthusiasm for stucco and glass windows came from. After Rotch’s death, his sister Annie Lawrence Rotch (1850–1926), wife of Horatio Appleton Lamb, donated all four windows to the Department of Architecture at MIT as part of the Rotch Art Collection.

Datation
Early 12th–early 14th century AH / 18th–19th century CE (?)
Période
1700 – 1899
Sites antérieures
Lieu de production

Provenance

Propriétaire

family of architect Arthur Rotch

Dès 1899 (ca.): MIT Libraries, Numéro d'inventaire: Rotch Art Collection 7, Cambridge (États Unis)
Propriétaire précédent·e

1860s-1870s (?)– Death Arthur Rotch – Death–E 19th century (?), Horatio A. Lamb, E 19th century–MIT, Department of Architecture, family of architect Arthur Rotch ?–Arthur Rotch, 1860s–MIT
(gifted shortly after the opening of the MIT Architecture School in the 1860s)

De 1894 jusque 1899 (ca.): Rotch, Annie Lawrence
De [année de réception inconnue] jusque 1894: Rotch, Arthur

Bibliographie et sources

Bibliographie

Chewning, J. A. (1979). William Robert Ware at MIT and Columbia. Journal of Architectural Education, 33(2), pp. 25–29.

Herz, M. (1902). Le musée national du Caire. Gazette des Beaux-Arts, 3. Pér. 28, 45–59, 497–505.

Informations sur l'image

Nom de l'image
USA_Cambridge_MITLibraries_IG_258_1
Crédits photographiques
Rotch Art Collection, Department of Distinctive Collections, MIT Libraries

Proposition de citation

Giese, F., & Wolf, S. (2025). Stucco and glass window with cypress tree and flowers. Dans Vitrosearch. Consulté le 5 décembre 2025 de https://www.vitrosearch.ch/objects/2713102.

Informations sur l’enregistrement

Numéro de référence
IG_258