Antieke Messing Condensor Condenser lens on an... Lot 828

Antieke Messing Condensor Condenser lens on an adjustable brass stand. These are also known as bench condensers or desk lenses. They were used to illuminate specimens for examination by focusing natural or lamp light, usually in conjunction with a microscope. H. 20 cm. A 19th Century Brass Bench Condenser. Condenser lens on an adjustable lacquered brass stand. These are usually known as bench condensers or desk lenses. They were used to illuminate specimens for examination by focusing natural or lamp light, usually in conjunction with a microscope.