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Original period photographs of issue 15, by Alberto Santos Dumont (1907)

Original period photographs of issue 15, by Alberto Santos Dumont (1907)

Regular price R$ 6.000,00 BRL
Regular price Sale price R$ 6.000,00 BRL
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Comes with Certificate of Authenticity and Digital Warranty ©

In 1907, Alberto Santos Dumont improved the 14 Bis with another biplane, the number 15.

  • Six original, period photographs of issue number 15.
  • Authors: Rol & Cia, Branger.
  • France, 1907.
  • Approximately 12 cm x 17 cm.
  • Notes in French on the back.
  • Perfect condition.

Santos Dumont's No. 15 was an ambitious biplane prototype developed in 1907, shortly after the success of the 14-Bis. Initially powered by a 50 hp Antoinette engine mounted above the upper wing, the aircraft had large wingspan (11 meters) and extremely narrow wings, with a chord of only 60 cm, totaling an area of ​​13 m². These wings were divided into three sections by vertical surfaces and featured a pronounced dihedral, like the 14-Bis, as well as ailerons positioned in front of the wings for lateral control. The covering was made of Okoumé plywood only 3 mm thick, demonstrating the pursuit of lightness and efficiency. The landing gear consisted of a single wheel at the front junction of the lower wing, while the tail was supported by two long bamboo booms fixed laterally with steel cables. After being damaged during taxiing tests on March 27, 1907, the aircraft was repaired and fitted with a powerful 100 hp Antoinette V-16 engine, but despite the modifications, the aircraft never managed to complete a successful flight.

These photographs of Santos Dumont's No. 15 are of great historical and technical interest, as they clearly show the construction and testing of one of the Brazilian inventor's most ambitious projects after the success of the 14-bis. It is fascinating to observe the details of the biplane, with its narrow, long wings reinforced by vertical surfaces, the Antoinette engine mounted high, and the daring landing gear configuration with a single front wheel. The images show everything from meticulous assembly to ground tests, with Santos Dumont and his team alongside the aircraft, revealing both the experimental spirit and the elegant aesthetics of his creations. These are extremely rare records of a poorly documented phase of his career, in which he sought new advancements after conquering the skies of Paris in 1906.

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Yes. All items available at Glórias have been carefully selected, studied, and certified before being offered for sale. Each purchase comes with a digital certificate of authenticity and guarantee, which we send via email. It is signed and stamped by Mathias Meyer, a French autograph expert since 2010 and a member of the ILAB (International League of Antiquarian Booksellers).

Who selects and certifies the items sold?

All items are selected and certified by Mathias Meyer, a French specialist in autographs, manuscripts, and historical documents since 2010. Throughout his career, he has studied thousands of pieces related to Brazilian history, sports, science, literature, and arts, and is now a member of ILAB (International League of Antiquarian Booksellers) and founder of Glórias.

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We offer a 3% discount for payments made in full (via Pix or bank transfer) or the option to pay in up to 3 interest-free installments by credit card. Furthermore, the prices of our pieces are carefully determined based on international market supply and demand, the specific characteristics of each item, and sales results of similar pieces. For this reason, we typically do not grant additional discounts. However, if you wish to purchase multiple pieces or make an exceptionally high-value purchase, we would be pleased to consider a special commercial arrangement.

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All items sold by Glórias have a permanent guarantee against eventual certification errors, provided that such error is subsequently demonstrated and confirmed by Mathias Meyer. In this event, the buyer will be fully reimbursed. To date, this situation has never occurred. The guarantee does not cover natural alterations or damage caused by improper storage, exposure to light, humidity, insects, or any other external factor that may compromise the preservation of the paper or ink.

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If your goal is to go beyond an isolated purchase, the ideal is to build a coherent collection around a theme, a personality, or a historical period, such as aviation pioneers, women who made history, love letters, old photographs of Rio de Janeiro, Oscar Niemeyer, Pelé, or Ayrton Senna. Mathias Meyer can guide you in forming a consistent collection, according to your interests, objectives, and budget.

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To preserve your document in the best condition, we recommend against laminating it or keeping it permanently framed, as paper needs to breathe and prolonged exposure to light can accelerate its deterioration. Ideally, store it in a dry, dark, and clean place, protected from humidity, extreme temperatures, dust, and insects, ensuring its preservation for many decades.

Why aren't these pieces in museums?

Throughout history, much of the world's documentary heritage has been preserved thanks to private collectors and dealers. These enthusiasts of historical documents play a fundamental role in the discovery, study, and preservation of pieces that can later be loaned, donated, or sold to museums and other institutions. In Brazil, where many museums have limited financial resources and staff, this collaboration is even more important. Glórias maintains relationships with public institutions, museums, and researchers, both in Brazil and abroad, sharing discoveries, knowledge, and, in some cases, documents for exhibitions.

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Behind every rare document lies a unique trajectory, which makes collecting a fascinating way to preserve and transmit history. Most of the pieces offered by Glórias were inherited by families who contacted us, while others were acquired at auctions, where they were misidentified or undervalued, or came from collectors, antique dealers, or autograph document merchants.