IMG_1729 By sharonkelly | Published May 20, 2017 | Full size is 3037 × 2408 pixels IMG_1722 IMG_1731 A lightbox was used in the past to view photgraphic slides… light could pass through them to enable the image to be clearly seen. Slides were then put into a slide projector to enlarge and view on a screen or wall. Bookmark the permalink.