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We see these chips in Diana's home:

enter image description here

What exactly are these chips?

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    Those look like the type of 35 mm photo slides that would be used in an old school slide projector. Sep 8, 2021 at 6:37
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    I agree. You should enter that as answer. The slides could also be viewed in a handheld viewer, which is more likely in someone's home. picclickimg.com/d/l400/pict/174214932441_/…
    – Pete
    Sep 8, 2021 at 10:25
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    Those are pictures. My father was a photographer. I grew up surrounded by them
    – slebetman
    Sep 8, 2021 at 18:30
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    Randy, you've make a certain percentage of users feel REALLY OLD right now....
    – Criggie
    Sep 8, 2021 at 20:55
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    Haha (ha...) to think someone would have to ask about that... I feel so old. I'll console myself listening to some cassettes... ;-P
    – Pablo H
    Sep 9, 2021 at 14:06

1 Answer 1

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As noted by LogicDictates, those look like photo slides, a technique involving turning photographs into positive image transparencies that can be viewed either using a projector to shine light through them and project them on a wall, or via a slide viewer.

My personal experience with such slides involves a much flimsier casing of cardboard, but they could also be more durably encased in metal or plastic.

Cardboard slides Metal slides Plastic slides

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    The metal ones are rare in my experience, but plastic is another common alternative, and looks to be what are in the original image. Sep 8, 2021 at 15:56
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    At the high end, slides which were likely to be projected in very-high-wattage projectors, like in big auditoriums, could be mounted between glass plates. Some conferences used to tell their presenters to make sure their slides were made like that.
    – CCTO
    Sep 8, 2021 at 17:16
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    I recently scanned some of my GFs old slides that were probably done in Europe back in the 1970s. The processor had put the 35mm film in a two piece plastic frame (with glass covers) that snapped together. They look like those in the OP. Google "slide mounts" I found several brands on Amazon and eBay.
    – DaveM
    Sep 8, 2021 at 19:37
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    It feels weird that you feel the need to explain what photo slides are. Am I really that old? Sep 8, 2021 at 21:11
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    @JörgWMittag: I haven't seen a slide projector used in probably 30 years. We had an old carousel setup in the basement due to my mother keeping the supplies of a local organization that she worked for, and we occasionally broke it out to view the slides. Heck, I used the "Oops, upside down slide" on a Powerpoint a few years back, and the kids had no idea what I was referencing.
    – FuzzyBoots
    Sep 8, 2021 at 21:13

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