Brother and sister Teddy and Grace, suffering from sandy blight (trachoma), wearing new tinted, corrective spectacles, 1928.

Brother and sister Teddy and Grace, suffering from sandy blight (trachoma), wearing new tinted, corrective spectacles, 1928.

Brother and sister Teddy and Grace, suffering from sandy blight (trachoma), wearing new tinted, corrective spectacles, 1928.