27th Jan, 2022 9:30
The Collectors Sale
Richard Freres balloning barometer
Portable Aneroid Altitude Recording Barograph
A rare early twentieth century mahogany cased pocket aneroid barograph or altimeter by Richard Freres of Paris in original case. The centre of the housing is stamped with the Richard Freres trademark with Brevete SGDG. The word brevete means patented in French with the initials SGDG meaning Sans Garantie Du Governement (without governmental guarantee), a legal requirement of the French Government from 1844 until the mid-twentieth century. This mark was applied to all French goods that were manufactured for export during the period. This item was retailed through Negretti & Zambra [label to the inside lid] and was devised for use by surveyors, travellers, explorers and airmen.
The mahogany case 18 cm W
Sold for £397
Result plus buyers premium
A rare early twentieth century mahogany cased pocket aneroid barograph or altimeter by Richard Freres of Paris in original case. The centre of the housing is stamped with the Richard Freres trademark with Brevete SGDG. The word brevete means patented in French with the initials SGDG meaning Sans Garantie Du Governement (without governmental guarantee), a legal requirement of the French Government from 1844 until the mid-twentieth century. This mark was applied to all French goods that were manufactured for export during the period. This item was retailed through Negretti & Zambra [label to the inside lid] and was devised for use by surveyors, travellers, explorers and airmen.
The mahogany case 18 cm W
Auction: The Collectors Sale, 27th Jan, 2022
