A close material reading
Oblong, relatively broad tesserae shape the faces, drapery and surrounding field. This handling belongs to a technical language that became increasingly established later in the nineteenth century, a point that should be considered alongside the proposed mid-century date.
The left arm of the young Saint John the Baptist appears materially distinct from the rest of the composition. Here the tesserae are larger, more quadrangular and show notably less tonal variation. The difference suggests a later intervention or reworking, although examination of the object would be required before any firm conclusion.
A subject repeated in mosaic
Other micromosaic versions are documented in public and private collections. The Hermitage Museum in Saint Petersburg preserves a late-eighteenth-century example by G. Malusardi, a mosaicist of the Vatican Mosaic Studio (Efimova E., 1968, p. 34). A version by Luigi Moglia is in the Musée National du Château de Compiègne (cat. pp. 22–23); further examples are recorded in the Quirinal Palace collections in Rome and the Gilbert Collection in London.
The Gilbert Collection version, slightly smaller than the present work, was executed at the end of the nineteenth century by Ludovico Lucietto at the Vatican Mosaic Studio (Hanisee Gabriel J., 2000, p. 68). These works are comparisons for the history of the subject; they do not establish the authorship or date of the micromosaic examined here.
The Vatican Studio archive
A document in the Archives of the Reverenda Fabbrica di San Pietro records that in 1899 Ludovico Lucietto was commissioned to complete a Madonna della Seggiola begun by Innocenzo Pallini in 1897 and left unfinished at Pallini’s death (ARFSP, Lucietto Ludovico, II-I, 140).
The same documentation records Lucietto’s appointment as a supernumerary mosaicist of the Vatican Studio in 1877 and his activity into the first half of the following century. The subject continued to be reproduced by the Studio in subsequent years.
The catalogue of the 1867 Exposition Universelle in Paris lists among the Vatican Mosaic Studio’s exhibits La Vierge à la chaise, d’après le tableau de Raphaël qui existe dans la galerie de Florence (1867, p. 30). The reference demonstrates the subject’s established place in the Studio’s repertory, not a direct link with the present object.