A name that counts its founders.

Zero Sette — “zero seven” — is a Castelfidardo accordion factory whose name records its founding. The company says it was “Founded in 1945 by seven young and motivated men,” and the Italian guitar-history site Fetish Guitars names them as Guido Guidobaldi, Mario and Luigi Scattolini, Giuliano Bontempi, Dante Pacioni, Giuseppe Salvatori and Adolfo Spatari. Guidobaldi, who ran the administration, had learned English at evening classes and worked as an agent for Selmer.

From the start it built for others. Two American firms tell that story. Petosa of Seattle says its family expanded “in 1945 by creating a partnership with our factory in Castelfidardo, Italy known as Zero Sette Co.” And the New York firm Giulietti moved its production to Zero Sette; Fetish Guitars says Giulietti money helped finance Zero Sette’s first investments, while the guitar historian Michael Wright has called it a Giulietti subsidiary. We report both accounts.

Today it is part of a larger maker. In 2007, Bugari Armando says, it bought “the ZERO SETTE company and the GIULIETTI brand, bringing together the workers of the two companies in a single plant.” The two companies still have separate VAT numbers but share one address on the coast road outside Castelfidardo. After Armando Bugari was hurt in a car accident, the firm was run by Roberto Ottavianelli; in 2018 the press reported a partnership with Tianjin Huayun Music Instrument of China, and Bugari’s own timeline describes a 2019 agreement with “an important group of investors” from that company. Bugari says it had more than thirty employees and collaborators in 2021.

Accordions — and electric guitars.

Zero Sette’s most unexpected chapter is electric guitars. As accordion demand fell, its factory became, in Michael Wright’s words, a major Italian supplier of electric guitars in the early 1960s; Wright, writing in Vintage Guitar in 2018, says it was making them “by ’64.” It built JG and Juliett guitars for Giulietti, Contessa guitars distributed by Hohner, and Goya Rangemaster solid-bodies for the New York importer Hershman from 1965.

The guitars carried their makers’ trade. The Goya Rangemaster 109 thin-line, catalogued from 1966 to 1969, used pushbutton pickup switching that guitar historians compare to an accordion’s register buttons. Some semi-acoustics went to Norway under the names Rayhorn and “0-Seven.”

Accordions remain the business. The brand still offers standard-bass, converter and special instruments, sold by dealers with model names such as the “B.30 by 07.” Its website is old — a Flash-era page that still offers a 2011 catalogue — so we describe it as a brand made within Bugari Armando’s plant rather than as an independent company. Armando Bugari, who died in 2017, had promoted the Zero Sette brand as a young man before founding his own firm, the company says.

The Castelfidardo supply chain.

Castelfidardo, in the Marche, has made accordions since the nineteenth century, and its own history page records the scale of the boom. Between 1947 and 1953 the town’s accordion exports rose from 57,523 to 192,058, and a town of about 9,000 people employed about 10,000 accordion workers. Seventeen firms went bankrupt between 1960 and 1963.

The post-war years were the town’s golden age. The comune records that nineteen accordion firms were founded in Castelfidardo alone between 1946 and 1948, that some took Hollywood names — Paramount, Universal, MGM, Metropolitan — to sell in America, and that one street, via Marconi, was nicknamed “via dei dollari,” the street of dollars.

Consolidation came early. In July 1946, the Treccani biographical dictionary records, three firms — Settimio Soprani of Castelfidardo, Scandalli of Camerano and Frontalini of Numana — joined to form Farfisa, the “Fabbriche Riunite Fisarmoniche,” though Frontalini soon withdrew.

The decline was long. In 2012 the business paper Il Sole 24 Ore put the peak at 240,000 accordions a year and current output at “non più di 30mila” — no more than 30,000 — between Castelfidardo and neighbouring Recanati. The town says about thirty firms still work there.

Much of the instrument comes from specialists. A March 2000 trade report, quoted by the accordion writer Mario Bruneau, counted 29 accordion firms in the area and found that “only 2 are actually able to produce an entire accordion”; the rest depended on outside companies for components such as buttons and bass mechanisms.

The reeds, which make the sound, come from a handful of makers. A 2021 study in the European Journal of Musicology by Raffaele Pinelli named four in the Marche — Voci Armoniche, Binci, Cagnoni and Artigiana Voci — and found that the Italian reed market had fallen sharply in the 2000s.

The town keeps its history in public. Its international accordion museum grew out of an appeal on the RAI television programme Portobello on 20 February 1981 and opened on 9 May 1981; a 2020 count put its collection at 450 accordions, 9,500 scores and 11,000 recordings.

Castelfidardo is now working toward UNESCO recognition for accordion making: the town says a cataloguing phase ended on 13 September 2025 with eighteen documentation sheets. As far as public sources show, the town has no protected geographical indication for its accordions, although EU rules for craft indications took effect on 1 December 2025.

The trade itself is smaller and richer. Under customs code 9205 90 10, Eurostat records that Italy exported €22.37 million of accordions and similar instruments in 2024 — 9,998 units, about €2,240 each — against 16,905 units in 2007.

Zero Sette sits at the centre of that supply chain: a factory that has spent most of its life building instruments that carried other people’s names.

The “07” of seven founders.

Zero Sette’s brand is a number. The “07” that dealers attach to its models, and that once appeared on its guitars, is a quiet piece of identity: it records how the company began rather than who owns it. That modesty suits a maker whose work has so often appeared under other brands — Giulietti, Petosa, Goya, Hohner’s Contessa. Its story is a reminder that a famous name on an instrument may say more about the importer than the workshop.

For a design guide, Zero Sette is a case study in invisible making. Compare Bugari, which now owns it, and Petosa, the Seattle brand it built for. For this guide we use a graphite, a bone and a brass with a numeral sans, an unofficial interpretation; no instrument or logo is reproduced.

Keep Zero Sette’s identity on hand — save it to a board in the Made Good inspiration library.