Grisaille (from the French gris, grey) is a painting technique executed entirely in shades of grey, from deepest black through a full tonal range to near-white. In enamel, the technique uses layered opaque and translucent grey vitreous enamels, fired in sequence over a foil or dark enamel ground, to create a monochromatic scene with the appearance of sculptural relief. The lighter passages are built up gradually, each layer fired before the next is applied, so that the final surface has a depth and three-dimensionality that the flat application of a single tone could not achieve.
The Technique
The starting point for grisaille enamel is typically a dark base: a fired black or dark blue enamel ground, sometimes over a foil. The painter then applies progressively lighter grey enamels, working from the shadows toward the highlights, using a very fine brush and firing the piece between each significant stage of work. The palest highlights, applied last, are typically an opaque white enamel that, against the dark ground and translucent mid-tones above it, reads as the brightest point of the composition.
This technique has a long history in European decorative arts. It was associated particularly with the Limoges enamel tradition from the sixteenth century onward, and with miniature portraiture and clock-face painting in the eighteenth and nineteenth centuries. By the time Cartier's workshops were applying it in the early twentieth century, grisaille had a well-established lineage in French fine craftsmanship.
Grisaille at Cartier
Cartier used grisaille enamel in the early twentieth century on a range of objects where figurative or decorative painted scenes were wanted. Clock faces, including some produced in the Mystery Clock ateliers, used grisaille panels for their decorative surround or case elements. Desk clock faces and small easel clocks carried grisaille scenes of classical figures, landscapes, or ornamental motifs. Vanity case and nécessaire panels used the technique for miniature scenes on lids and covers, where the monochromatic palette gave a formal, cameo-like quality to the decoration.
The workshops associated with Maurice Couët, who oversaw much of Cartier's clock production from the 1910s onward, were among the most technically accomplished in Paris in this period, and the grisaille work associated with Cartier's clock output reflects that general standard of craftsmanship. The technique required a miniaturist's precision and patience: mistakes in enamel painting are not easily corrected, and the firing process introduces variables that make the final result harder to predict than oil or watercolour.
Distinction from Other Enamel Techniques
Grisaille enamel is distinct from the other techniques used in Cartier's workshops. Guilloché enamel, perhaps the most visible enamel technique in Cartier's watch and clock work, applies translucent coloured enamel over an engine-turned metal ground; its effect is optical and chromatic rather than figurative. Champlevé fills carved recesses with colour; cloisonné uses metal wire cells to separate colour areas. Plique-à-jour creates translucent unsupported enamel membranes. All of these are colour-based techniques. Grisaille's particular territory is figurative and sculptural: the modelling of forms in light and shadow using tonal range within a single colour.
Sources
- Grisaille, Wikipedia
- Limoges enamel, Wikipedia
