The Use and Operation of the Overhead Projector / L'Opération du rétroprojecteur
I0006-09-0087: The Concordia University Audio-Visual Department demonstrates the use and operation of an overhead projector from 1976. The second half of this video is presented in French. More info: https://concordia.accesstomemory.org/the-use-and-operation-of-the-overhead-projector-lop-ration-du-r-troprojecteur
I0006-09-0087: The Concordia University Audio-Visual Department demonstrates the use and operation of an overhead projector from 1976. The second half of this video is presented in French. More info: https://concordia.accesstomemory.org/the-use-and-operation-of-the-overhead-projector-lop-ration-du-r-troprojecteur