Monocular "Cyclops" 8x20 La Filotecnica, Eng. A. Salmoiraghi, about 1920

Patented monocle "Cyclops" 8x20, produced by "La Filotecnica" between 1900 and 1910. A precise dating is not possible, but the use of an aluminum body suggests a production after 1900 when aluminum became more common and cheap. It is described in a catalog of "La Filotecnica", in which it is suggested that its production was inspired by the "Lunette Napoleone III" by Porro: https://historicacollectibles.com/en/binoculars-an...

The "Cyclops" has a Porro II prism system with a single focusing eyepiece.
It comes with its original and its elegant leather-covered case.
The view is good and the focus works perfectly.

History of Salmoiraghi Filotecnica:

Salmoiraghi was a company resulting from the experience that Angelo Salmoiraghi acquired, after graduating from the Polytechnic of Milan, in Philotechnics, founded in 1865, under the guidance of the founder Ignazio Porro.

In Philotechnics, Eng. Salmoiraghi held positions of manager until acquiring ownership in 1873, transforming the name into "Salmoiraghi, Rizzi e C." for the production of optical and topographical instruments.

In 1877 the company dissolved and Angelo Salmoiraghi continued the business alone with a new company called Filotecnica Salmoiraghi.

At the end of the century he had excellent collaborations: above all that of Francesco Koristka, improving the offer of optical and precision instruments. Under his guidance the company developed considerably, until it acquired a leading role among the producers of optical and precision instruments, the Regia Aeronautica and the Regia Marina. In Philotechnics, Eng. Salmoiraghi held positions of manager until acquiring ownership in 1873, transforming the name into "Salmoiraghi, Rizzi e C." for the production of optical and topographical instruments.

In 1877 the company dissolved and Angelo Salmoiraghi continued the activity alone with a new company called Filotecnica Salmoiraghi. At the end of the century he had excellent collaborations: above all that of Francesco Koristka, improving the offer of optical and precision instruments. Under his guidance the company developed considerably, to the point of acquiring a leading role among the producers of optical and precision instruments, the Regia Aeronautica and the Regia Marina.

In Philotechnics, Eng. Salmoiraghi held positions of manager until acquiring ownership in 1873, transforming the name into "Salmoiraghi, Rizzi e C." for the production of optical and topographical instruments.

In 1877 the company dissolved and Angelo Salmoiraghi continued the business alone with a new company called Filotecnica Salmoiraghi.

At the end of the century he had excellent collaborations: above all that of Francesco Koristka, improving the offer of optical and precision instruments. Under his guidance the company developed considerably, until it acquired a leading role among the producers of optical and precision instruments, the Regia Aeronautica and the Regia Marina. In Philotechnics, Eng. Salmoiraghi held positions of manager until acquiring ownership in 1873, transforming the name into "Salmoiraghi, Rizzi e C." for the production of optical and topographical instruments.

In 1877 the company dissolved and Angelo Salmoiraghi continued the business alone with a new company called Filotecnica Salmoiraghi. At the end of the century he had excellent collaborations: above all that of Francesco Koristka, improving the offer of optical and precision instruments. Under his guidance the company developed considerably, to the point of acquiring a leading role among the producers of optical and precision instruments, the Regia Aeronautica and the Regia Marina.