What do you call this type of photograph?

I love these types of pictures, but sadly, I don't know where to find them, because I don't know what they re called. They re pretty difficult to come across. It's when you hold a photograph (such as a polaroid) up in front of the place where you originally took the photograph, and you take a picture of that moment on another camera.
Another thing is taking a picture of iphones taking a picture. I LOVE this. IIm attaching some examples below, because I know it's hard to explain. Hopefully someone knows a good word for this.
http://streetiphoneography.com/post/136126969095/line-up
http://www.samalive.co/through-the-phone/

Added (1). Searching "picture of iphone taking a picture" brings up the best results, but it sounds so lame. It really does deserve a more majestic title. Like me.

I love these types of pictures, but sadly, I don't know where to find them, because I don't know what they re called. They re pretty difficult to come across. It's when you hold a photograph (such as a polaroid) up in front of the place where you originally took the photograph, and you take a picture of that moment on another camera.
Another thing is taking a picture of iphones taking a picture. I LOVE this. IIm attaching some examples below, because I know it's hard to explain. Hopefully someone knows a good word for this.
http://streetiphoneography.com/post/136126969095/line-up
http://www.samalive.co/through-the-phone/ I would refer to them as a picture within a picture. But lining them up, and the background slightly out of focus kinda needs it's own name.

We'll call them Kayla shots! Pass it around! I think they're called timeline photos or perhaps they're called lifetime photos. I don't know the exact name of them either. I don't think they have a name but try those suggestions that I mentioned. I've never heard it being called by a specific name or term. However, picture within a picture should be good enough.

I think they're called timeline photos or perhaps they're called lifetime photos. I don't know the exact name of them either. I don't think they have a name but try those suggestions that I mentioned.

I've never heard it being called by a specific name or term. However, picture within a picture should be good enough.