Magnificent Optician's Lens Case in Perfect Condition. Ca.1900

Fantastic solid wood case to guard Optician's lenses from ca. 1900. It guards several dozen lenses of different shapes and diopters, with the indicative number written on the metal part of the lens. They are thus distributed in two colors; concave in silver and convex in gold. They are perfectly ordered in pairs thanks to the indicative signs that distribute them according to their typology and degree of diopter.It has lenses up to 2 diopters and attaches several special colored lenses for sunglasses. The box is in perfect condition, without scratches or breaks, and with the fabric and the holes for the lenses in perfect condition. All lenses are incredibly well preserved and none are missing. At first what was used to correct vision defects was what is known as a spectacle or monocle, but when, after the invention of the printing press, reading became more common, the demand for lenses in order to see better increased considerably. It would not be until the 18th century, and thanks to Benjamin Franklin, when the first bifocal glasses were born, in which both myopia and hyperopia lenses could be mounted. Piece at the height of a professional in the field, which undoubtedly will appreciate the value of this box of lenses, perfect for a small collection in the showcase of his office. Case measures: 41 x 29 cms.