absolutely stupid question, which side to view slides from??

[Werewolf]

As title, i'm scanning in a load of old slides and i've noticed the card framed ones (60's) all seem to have a note on one side "view from this side", however the plastic framed ones don't.

So, absolutely stupid question, which side do I view/scan the plastic slides from? (I don't think i've ever used slides before, and a quick google doesn't suggest an answer).

 

[Werewolf]

It's already going to take me about 6-12 hours to scan them, and label them etc*..(assuming about 2 minutes a slide for scanning, about 30 seconds to load them in the right way up, and then a couple of minutes to actually create the index for them)

I would prefer to get them the right way round from the start

I just had a look at a few of them, and they all have a plain white side and a side with a grey insert (it clips inside the white part), and one of them had "this side towards screen", so i'm assuming that is the side to face towards the scanner element.
It's odd that only about 1 in 20 or so of the plastic ones say which side to face view from, whilst all the card ones did, I guess they assumed by that by that time everyone would know how to use slides (it seems Kodak must have swapped from card to plastic about 70 or 71, as the card ones seem to date from about 64-70).



*There are about 200.