With no real knowledge
I would guess that potential for the number sales to be quite small and not worth the effort for micro, especially given limited options for editorial and if quality is an issue.
I would hope to go fewer but bigger sales and put them on rights managed in a macro library (I'd just use Alamy but there are probably better places?)

Getty, perhaps.

If you want to create a professional copy purchase a camera table and shoot the images with a decent digital camera. Canon T3i/4i for example.

I think you would do better from a good scan than from trying to reshoot on digital. Trouble is, good scans are expensive.

Quote from: Sadstock on January 31, 2013, 16:58

Can I ask what an AoA search is?

me too

I googled AoA search and the first two pages were about the Australian Osteopathic Association and after that something about flights, so I think that was a fail

I'm pretty sure non-members can't access it, but it's part of Alamy Measures whereby you can check what people have been searching on in your own port (Your Images) or sitewide ('All of Alamy').

Alamy Measures only publishes searches by their top buyers. It's generally raved about among the tiny forum community, but I find it limited in its usefulness.

No way to know how much of a market there is unless you submit some.  As mentioned already, decent scans will cost some money and it will take some time to clone out blemishes etc.  Plenty of places will take scanned slides, or at least they did the last time I submitted any which was a couple of years ago.  If it were me, I would go through them to pick out the very best for scanning, then send 10 to the micros as editorial - DT, SS, iS, BS, DP might take them - and send others to Alamy as RM and wait to see what happens.  Another place for vintage slide scans might be fotoLibra - I think they charge if you want to sell regular images but you can sell vintage images through a free account.  However, I haven't used them and they don't have any information on charges or royalties on their web page (that I can find) so I don't know for sure.  Maybe somebody else here knows about them.  Good luck!

Good luck.
I've got some vintage photos from Jerusalem, some of them very interesting, that were given to me by a colleague over 30 years ago, taken by his father when he was a young man, but I have no way of getting in touch with him to see if he would assign copyright. (Actually, I'm not sure that I am remembering the correct colleague's name, I didn't even know him very well.) Even if he wanted them back, it would be great if they could be seen.
(Actually, that said, I have no idea where they are and they may be in poor condition now - I haven't looked at them for years).