Bruno Gritti - No. 70 Cleps large model with eccentric telescope

Bruno Gritti

The MB&F M.A.D.Gallery presents 25 rare and beautiful 19th century surveying instruments collected by Italian architect Bruno Gritti

In the 18th and 19th centuries, surveyors were important people, responsible for tracing the lines needed to map cities, dig canals, build roads and lay down railway lines in a rapidly industrialising world.

Bruno Gritti - portrait

Their most precious possessions were their surveying instruments like theodolites, tacheometers and levels. These instruments weren’t just highly accurate measuring tools, they were artfully crafted too: Gleaming brass, bronze or steel, sometimes complemented by the rich brown hue of wooden tripods or carrying cases.

Mr Gritti has dedicated the last 50 years of his life to meticulously researching and collecting these historical treasures, ambassadors to the age of exploration and empire-building. And luckily for us, he has chosen the M.A.D.Gallery to fulfil his wish of passing the baton onto kindred spirits with a fascination for history and an appreciation of fine mechanical craftsmanship.

“The moment when you discover a new tool is indescribable”

Mr Gritti says of his carefully curated collection: “For me, the tools that feature in my collection are not just an expression of precision mechanics and applied optics, but they are also objets d’art representing a specific period of history.

“The moment when you discover a new tool is indescribable,” says the Italian. “Only a collector can understand the inner satisfaction that you feel at this early stage. It goes far beyond mere physical possession.”

Rarity and aesthetics were the two criteria Mr Gritti used to select pieces. Over the best part of 50 years, his collection grew not just in quality and quantity but also in value, as these instruments became coveted collectors’ pieces.

Bruno Gritti is a native of Bergamo, Italy where he continues to live. Now 75 years old, Bruno still works as an architect and currently specialises in the design and construction of health and social services centres. Besides his passion for surveying instruments, Mr Gritti is also a seasoned watch collector.

Instruments that shaped the world

Ever wondered how Mount Everest, the world’s tallest mountain, got its name? Well, it’s not so called after a famous explorer but thanks to the British surveyor George Everest, who played a crucial role in preparing the first land survey map of the Indian sub-continent in the 1830s.

Bruno Gritti - Bergamo

Indeed, the 18th and 19th centuries were the golden age of surveying, an era when previously unmapped parts of the world including the Americas and far-flung European colonies became new frontiers for trade, commerce and settlement.

To harness the resources of these regions, it was essential to know the lay of the land and so geodesic surveying and topographic mapping became tremendously important. Governments quickly understood the critical role that surveyors played in establishing control over territory and resources.

The task of charting these vast lands was formidable. Land surveyors often had to cover difficult terrain and spend months in the field measuring mountains, rivers, coasts and other topographic features with their trusty surveying instruments.

Until the advent of the Industrial Revolution in the latter half of the 19th century, these instruments were built by craftsmen who often doubled as self-taught inventors. Pieces were frequently finished with fine carvings and details that varied depending on who had commissioned them. Even within small series of 10 to 20 pieces, individual instruments could be considered as unique pieces because of the different finishing touches that they received.

The best surveying instruments were some of the most advanced scientific apparatus of their day, highly sought-after and extremely valuable not only for their hitherto unparalleled levels of precision, but also for the level of craftsmanship and sublime aesthetics that they exuded.

Tacheometers, theodolites & levels

The Gritti collection features some of the most coveted instruments of the period: Levels, theodolites and tacheometers.

The Y or Wye level was used for determining elevations and composed of a spirit level mounted in parallel to a removable telescope on Y-shaped supports. Theodolites were used to measure both horizontal and vertical angles with high precision and comprised a telescope attached to a graduated vertical circle, two horizontal circular plates and two spirit levels, while the tacheometer is a kind of theodolite that also allows the measurement of distances.

These instruments are still being employed today in their modern guise, featuring laser sensors and electronic gadgetry.

Featured in the Gritti collection are instruments crafted by well-known 19th century makers like Troughton & Simms of London that created instruments for the Greenwich and Melbourne Observatories. Another eminent British instrument maker in the collection is Thomas Jones, considered important enough to be elected a Fellow of the Royal Society of London in 1835.

Besides European manufacturers, the collection also boasts pieces from American firms like Young & Sons of Philadelphia as well as Keuffel & Esser of New York. Both European and American firms featured in the collection supplied instruments to the venerable U.S. Coastal Survey, which was set up in 1807 to survey the shoreline of the United States.

  • Brass and engraved metal, with wooden case
  • Signed “Societe de Lunetiers – Paris”, circa 1880
  • Price: 6’500.- CHF inc. VAT
Bruno Gritti - Tacheometer


Download the complete catalogue of the Bruno Gritti collection

Sample of surveying instruments available for sale at the M.A.D.Gallery Geneva:

Universal Theodolite No. 59 Universal theodolite
  • Brass and engraved metal
  • Signed “Troughton & Simms - London”, circa 1870
  • SOLD
Bruno Gritti - Theodolite No. 65 Theodolite
  • Brass and engraved metal with wooden case
  • Signed “Ing. A. Salmoiraghi - Milano” n° 3787, end of 19th c.
  • Price: 12’800.- CHF inc. VAT
Bruno Gritti - Tacheometer No. 78 Tacheometer
  • Brass and engraved metal.
  • Signed “G. Gerlach Varsavie” n° 12685, early 20th c.
  • Price: 6’800.- CHF inc. VAT
Bruno Gritti - Theodolite with astrolabe No. 61 Theodolite with astrolabe
  • Brass and metal with wooden case
  • Signed “Young & Sons - Philadelphia” n° 7429, 1906
  • SOLD
Bruno Gritti - Cleps large model with eccentric telescope No. 70 Cleps large model with eccentric telescope
  • Brass with wooden case
  • Signed “Ing. A. Salmoiraghi - Milano” n° 6465, circa 1920
  • Price: 24’500.- CHF inc. VAT
Bruno Gritti - Theodolite No. 104 Theodolite
  • Brass and metal
  • Signed “SUSS N. Budapest” n° 732, middle of 19th c.
  • Price: 5’900.- CHF inc. VAT