Jewellery, Watches & Silver | 14 February 2018
A rare pair of Martin's Margin spectacles, stamped 36BM
A rare pair of Martin's Margin spectacles, stamped 36BM?, circa 1750, steel with horn inserts or margins around the glass lenses, the temple hinges with raised slotted screws, the straight arms with ring ends
Benjamin Martin was a London mathematician, instrument and spectacle maker and is credited with making the first eyeglasses that corrected vision in addition to being a reading aid. Martin made his visual glasses which had reduced aperture lenses by way of the thick horn margin and in which the lens tilted inwards so that the axes of the eye converged on the object of regard. This optical innovation with its extremely distinctive appearance became known as Martin's Margins .
A lead solder repair to the right arm ring end, some twine binding the ring end of the left arm, minor rusting, otherwise in excellent condition, no damage and minimal scratches to the lenses.
Wednesday 14 February 2018, 10.30am
Sunday 11 February
10am - 2pm
Monday 12 February
9am - 5.30pm
Tuesday 13 February
9am - 4.30pm
Day of sale from 8.30am