Indigo is the only blue dye in the historical rug vocabulary. Every other blue you see in a vegetable-dyed weaving is indigo at a different concentration, indigo over a yellow underbath, or indigo cooled with iron. The depth of the blue field in a properly dyed Ziegler comes from indigo matured in a copper vat for two to three weeks before the wool was lowered, and from successive dips that build the colour up rather than from a single saturated bath.

Three weavers shared the loom for roughly five months on this 8' x 10' (244 x 305 cm) piece. The pile is hand-spun wool on a cotton warp and weft, knotted with the Persian asymmetric knot. The blue passages were lowered into the indigo bath three times across the dye programme, with intermediate oxidation between dips to build the colour from inside the fibre rather than at the surface. The finish was a long mineral wash that softens the contrast and lays a slight antiqued bloom across the field.

The composition

A beige ground carries floral and vine work in indigo blue, with the major motifs plotted at the open scale that distinguishes a Ziegler from the denser classical Persian repeats. The blue does not sit flat. It carries the slight tonal drift that successive indigo dips produce, with passages that read deeper at the centre of a motif and lighter at the edges. As the rug ages, the blue will continue to develop. Vegetable-dyed indigo holds its depth longer than any synthetic blue.

What you are buying

Antique Ziegler weavings of comparable scale, density, and dye discipline trade in London auction rooms between 20,000 and 45,000 pounds when stocked. A new piece in this lineage is the same loom, the same fibre, the same constructional standard. The asking price reflects a direct line to the workshop floor rather than the layered margins of antique dealing. The rug appreciates with use rather than depreciating, which is the rare property in a household purchase.

The piece in a room

8' x 10' (244 x 305 cm) holds a generous living arrangement, an eight-top dining table with chairs pulled, or the floor of a primary bedroom around a king frame. The beige and indigo palette is most at home with walnut, oak, brass, and warm whites. Cool plaster walls let the indigo settle into a considered ground rather than read as a focal block. Direct morning sun helps the wool open.

Conservation

Rotate a half turn each spring and autumn. Vacuum on low suction, beater bar disengaged. Blot spills with a clean cotton cloth pressed flat. A wool-trained conservator should hand wash the rug every five years. The rug should run eighty to a hundred years with this routine.

Reference

• Medium: hand-knotted hand-spun wool on cotton foundation
• Dimensions: 244 x 305 cm (8' x 10')
• Construction: Persian asymmetric knot
• Hands: 3 weavers, around 5 months
• Pile: 10 mm
• Dye: vegetable indigo
• Origin: India

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