WWI photo restoration

[Franz1944]

Hello,
Our family has a few WWI family photos. There a partially curled up and stiff. Is there a way to restore them or do I let it be?

I was reading something about soaking in water to restore them, but seems little weird to me.

Thanks

[HARRY THE MOLE]

if you soak them in water you will almost certainly ruin them. Seek the advice of a photography studio.