An antique 'S-L' (Societe des Lunetiers) 'Universal' map measurer, made in France, and dating from the early 20th century. With a nickel plated brass case, 35mm diameter white dial, blued needle, and a removable screw threaded handle. Also known as an Opisometer, this is an instrument for measuring lengths or distances on maps, with the dial calibrated in 1/2 inches to the mile and centimeteres to the kilometre. Although mainly intended for use with maps, it can also be used to measure distances on any flat surface. Francis Barker & Son made similar instruments at around the same time, and their version was known as 'The Rotameter'.
This instrument was made in France for export to the British market and is marked on the back of the case with the Societe des Lunetiers 'S-L' logo. It comes complete with its original cardboard box with instruction labels.
Societe des Lunetiers: was a French company based in Paris producing optical and scientific instruments. The company was established in 1849 when three different businesses joined forces to formthe 'Association Fraternelle des Ouvriers Lunetiers', an arrangement which existed until the late 1860's. It was then renamed 'Essel' (based on 'S-L', an abbreviation of 'Societe des Lunetiers') and operated from a group of small Parisian shops. The original company logo featured the letters S and L on either side of a candelabra, the modernized early 20th century version as seen on this instrument is a simplified design dating from c.1907. By 1930 S-L had several factories throughout France, one of the most important was La Compasserie (the compass maker), located in Ligny-en-Barrois in Lorraine. S-L also had a shop in London, at 56 Hatton Garden. In 1972 S-L merged with Silor to become the Essilor group.
Condition:
In very good condition and full working order. The box is in very good condition, with minor signs of wear.
Dimensions: 35mm (diameter), length including handle: 118mm
