StoneRoad2013's photos with the keyword: projector

ESP - 94a / O&S - old projector [2 of 2]

ESP - 94a / O&S - old projector [2 of 2]

StoneRoad2013
20 Sep 2020 157
Another old projector on display at Bialystok Polytechnic. Not sure how this one works.
ESP - 94a / O&S - old projector [1 of 2]

ESP - 94a / O&S - old projector [1 of 2]

StoneRoad2013
04 May 2011 288
seen in Poland, an old projector. [Instar] Having studied the setup, this looks like it projects an image of the page onto a screen