Jumelles Mars Skeleton Spectacles, c.1900-1930

Early 20th Century French Skeleton glasses by Jumelles Mars. Composed of brass & steel. Focused by knob adjustment. Circa 1900-1930.

'Skeleton' Glasses are collapsing opera glasses (theatre binoculars) with folding eyepieces and object glasses. Adjustable for distance and magnification.

Featured in the Science Museum Group.