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LAPIERRE MARKET

Pier Giacomo Castiglioni

Pier Giacomo Castiglioni (1913-1968) is the eldest of a Milanese trio that profoundly refounded post-war Italian design. With his brothers Livio (1911-1979) and especially Achille (1918-2002), he founded in 1938 the studio that would produce over three decades some of the most collectable pieces of 20th-century Italian. His premature death in 1968, at 55, marks the end of an exceptional creative period. LAPIERRE sources and authenticates vintage Castiglioni duo pieces for the Paris market.

The Milanese trio

Pier Giacomo Castiglioni was born on 22 April 1913 in Milan into a family of artists — his father Giannino Castiglioni was a monumental sculptor. He studied architecture at the Politecnico di Milano, graduating in 1937. The same year, he founded a design studio with his older brother Livio, already active in the field for several years with Luigi Caccia Dominioni. In 1938, the duo became a trio when Achille — still a student — joined the atelier.

During the 1940s and 1950s, Livio gradually drifted away to focus on stage lighting (he would later sign lamps for La Scala in Milan). Pier Giacomo and Achille then formed the duo that would sign the majority of the Castiglioni catalogue — fusional work where no clear distinction can be made between their respective contributions.

The Flos period (1962-1968)

Sergio Gandini founded Flos in Merano in 1962 with the idea of becoming the reference editor of modern Italian lighting. He immediately allied with the Castiglionis, who brought him in a few years several of the most collectable lamps of the century:

  • Arco (1962) — Floor lamp with long curved arm in polished stainless steel, single-block Carrara marble base. Designed to suspend light above a table without ceiling installation. Compasso d'Oro 1979 awarded to the piece.
  • Toio (1962) — Floor lamp using an automotive headlight as light source, mounted on a metal rod with visible transformer. First major ready-made in Italian lighting.
  • Taccia (1962) — Lacquered aluminium table lamp, white blown-glass shade freely deposited on the base. Orientation done by rotating the shade.
  • Snoopy (1967) — Table lamp evoking Charles M. Schulz's bulldog, black marble base, polished long-neck metallic shade.
  • Splügen Bräu (1961) — Reflective pendant.

The Zanotta period — the diverted ready-made

Before Flos, the duo signed for Gavina then Zanotta two pieces that define the Italian ready-made:

  • Mezzadro (1957) — Stool consisting of a tractor saddle in lacquered steel (different original colours, green and red are most authentic), mounted on a chromed steel rod and a wooden footrest. Edited by Zanotta only from 1971 — earlier pieces are prototypes.
  • Sella (1957) — Chair consisting of a bicycle saddle posed on a chromed steel rod and a hemispherical cast iron base. The hemispherical form allows unstable rocking — the chair is not made to sit on for long. Edited by Zanotta only from 1983.

These two pieces are manifestos: they affirm that a design object can be made of existing elements diverted from their original function, without losing its design value.

For Bernini — Sanluca (1961)

The Sanluca chair for Bernini is a lesser-known but critically important piece in the catalogue: a sculptural armchair built from several pieces of curved wood assembled without visible framing. The piece is today rare on the secondary market and reaches high prices.

Pier Giacomo after-Achille

Pier Giacomo died abruptly in November 1968, at 55. The exact cause is cardiac. His death marks the end of the most creative period of the Castiglioni studio. Achille continued alone for 34 years (until his own death in 2002), producing a second generation of pieces — Bavaria, Cumano, Frisbi, Glo-Ball, and especially Parentesi (1971, finalised with Pio Manzù, Compasso d'Oro 1979). But the specific creative fusion of the brothers ended in 1968.

Market and authentication

An authentic Castiglioni Pier Giacomo + Achille vintage piece presents:

  • Flos + Made in Italy marking (lamps) or Zanotta + Made in Italy (Mezzadro, Sella post-1971/1983) or Bernini (Sanluca)
  • For Arco: single-block Carrara marble with handle hole, weight 65 kg
  • For Mezzadro: original lacquered steel tractor saddle (green or red are most authentic)
  • For Snoopy: original black marble, polished long-neck metallic shade
  • Documented provenance for the rarest pieces (Sanluca, early Flos editions 1962-1968)

LAPIERRE process for this signature

Sourcing primarily in Italy (Milan, Brianza, Veneto) from partner Flos and Zanotta antique dealers and collector estates. Authentication via marking, original material quality, and cross-reference with Fondazione Achille Castiglioni archives. All lamps are electrically verified and brought to European standards before delivery.

Request a search

If you're looking for a specific Castiglioni Pier Giacomo + Achille piece (vintage Arco 1962-1968, Snoopy, Mezzadro pair), contact us.

FAQ

Frequently asked questions

Who was Pier Giacomo Castiglioni?
Pier Giacomo Castiglioni (1913-1968) was an Italian architect and designer born in Milan and died prematurely at 55 in the same city. Older brother of Achille Castiglioni (1918-2002), he founded in 1938 with his brothers Livio and Achille the Milanese studio Castiglioni that would remain one of the most influential of post-war Italy. Pier Giacomo and Achille formed a fusional creative duo: virtually all pieces signed Castiglioni until 1968 emerged from a collaboration where roles are not distinct. For Flos (co-founded in 1962), they signed the Arco, Toio, Taccia, Snoopy, Splügen Bräu lamps. For Zanotta, the Mezzadro stool and the Sella chair. For Bernini, the Sanluca chair. Compasso d'Oro multiple times between 1955 and 1967.
What's the distinction between Pier Giacomo and Achille Castiglioni?
Pier Giacomo and Achille worked in fusional duo from 1938 to 1968. No clear distinction can be made between their respective contributions on pieces from this period: Arco, Toio, Taccia, Snoopy, Mezzadro, Sella are signed Castiglioni, without first-name prefix, because they emerge from common work. After Pier Giacomo's death in 1968, Achille continued alone and finalised several pieces begun in duo (notably Parentesi in 1971, with Pio Manzù). Pieces signed by Achille alone — Bavaria, Cumano, Frisbi — are post-1968. A Castiglioni-signed piece dated before 1968 therefore includes Pier Giacomo's contribution.
Which Pier Giacomo Castiglioni pieces do you source?
Our sourcing favours pieces by the Castiglioni duo from before 1968: for Flos — Arco (1962, marble-base floor lamp), Toio (1962, automotive-headlight floor lamp), Taccia (1962, aluminium-glass table lamp), Snoopy (1967, black-marble table lamp), Splügen Bräu (1961). For Zanotta — Mezzadro (1957, tractor-saddle stool), Sella (1957, bicycle-saddle stool). For Bernini — Sanluca (1961, sculptural armchair). All these pieces were designed between 1957 and 1967, the period of full Pier Giacomo + Achille collaboration.
Why is the Castiglioni market consolidated?
Several reasons: (1) relative rarity — Pier Giacomo died at 55, which limited the production of new pieces; (2) institutional status — their works are at MoMA, Triennale di Milano, and Vitra Design Museum; (3) continuous Flos edition since 1962 maintains active demand but clearly distinguishes vintage editions from reissues; (4) the Compasso d'Oro was awarded to several Castiglioni pieces, creating a historical value marker; (5) the Fondazione Achille Castiglioni in Milan maintains archives and documents the market. A vintage Arco 1965 is worth 4-6 times more than a generic copy.
How much does a vintage Pier Giacomo Castiglioni piece cost?
Castiglioni duo pieces from before 1968 are among the most collectable Italian design: Vintage Arco 1962-1968 (the rarest): 4,500-7,000 EUR; Vintage Arco 1968-1990: 3,500-6,000 EUR; Vintage Toio: 1,500-3,500 EUR; Vintage Taccia: 800-1,800 EUR; Vintage Snoopy: 1,500-3,500 EUR; Vintage Mezzadro Zanotta: 600-1,500 EUR (green or red more expensive); Vintage Sella Zanotta: 800-2,000 EUR; Vintage Sanluca Bernini: 4,500-8,000 EUR (rare). Pieces with era Flos marking and documented provenance reach the highest prices.
How is a Castiglioni piece delivered?
Pieces depend on the model. An Arco requires 2-person transport (65 kg of marble) in custom wooden crate. A Snoopy or Taccia, lighter, ships in triple cardboard packaging with precision foam. Zanotta pieces (Mezzadro, Sella) are relatively light and ship more easily. All lighting pieces are electrically verified and brought to European standards (CE, French plug) before delivery. For Paris and Île-de-France, delivery in our internal van. For France and Europe, specialised carrier. Typical delays: 7 to 21 days depending on piece.