Go to a drugstore and get a bottle of glycerin.

Pour a pan full of distilled water and add about a teaspoon of the
glycerin to it.

Soak the photos in the water/glycerin for about an hour.

Remove photos and, using a rubber roller, squeegee the photos onto clean
glass.

They will pop off when completely dry and they will be flat.  The
glycerin will keep them from being so brittle.  Too much glycerin and
they will be like toilet paper and have no stiffness at all.

Mike

George Goff wrote:
> I would like to beg the indulgence of all and the help of any resident
> photographers on the List.
>
> My Sweetheart has been sorting through the wartime (WW II) photos of her
> father.  The ones which were in an album are amazingly fresh looking, but the
> dozens of glossy, black and white snapshots which were stored in boxes have curled
> severely.  Is there a good and proper way to flatten them?  I've weighted
> some of them with volumes of the Britannica, but after a couple of weeks they
> have not flattened very much.
>
> Also, is glassine of mylar the better envelope material for long tern photo
> storage?
>
> Thanks one and all,
> George
>