Curled Prints?

[batey_1020]

I'm in the process of sorting my grandfathers collection of darkroom work. A few hundred prints I have now from 4x6 up to 8x12 on all sorts of paper.
Many of them have just been stored in the boxes from paper and have curled rather bad.
My intention was to mount the large ones and store in print archive boxes but it's the smalles ones that I have an issue with. How should I go about trying to reduce the curl so I can either mount them in an appropriate album?

 

[shadowfox]

How should I go about trying to reduce the curl so I can either mount them in an appropriate album?

Maybe use those albums that has slits where each corner of the photo is inserted into. Make sure it's acid free.

Then, put the album under a stack of heavy books for a month, sitting on it several times a day, that should tame the curl some 😀