Original War Fund "for our Own...for our Allies" adhesive stickers. I believe they are water activated? They are all stuck together in clumps.
They can be separated by steam - I steamed them and was able to pull them apart, one at a time, with minimal damage (some curling). This was too time consuming to separate all of them, so I did enough to make a few sets (here)
and am selling the rest as a project for someone else. They tend to rip if you pull them apart without the aid of steam. I am not sure how many are in the stacks - there are many more of the smaller sticker. They do show some wear.