Combining 2 pages from a book into 1 image

[fuddbeer]

Hello,
I have 1 image printed onto 2 pages in a book. I'm looking to combine the 2 pages into 1 seamless image. Any ideas or online videos that you know of that might be able to help with this? It's beyond my skill level.
See attached.
It may not be possible I understand that the 2 sides are not inline and also it's missing some information where the 2 pages meet.
Any advise would be greatly appreciated.
Thanks in advance.

 

[thebestcpu]

Before trying to do a photo restoration, I would search the possibilities of finding the whole image form its source or some partial image from which to overlay and use to fill in the gaps.
Can you share any more specifics about the location in which the image was taken. A good search effort might save a lot of restoration work with a bit of luck.
Just a suggestion
John Wheeler

 

[IamSam]

This is the Kilmainham Goal Prison (Museum) in Dublin Ireland.

This is about the best reference I could find....

 

[thebestcpu]

Here is another for consideration that might help.
John Wheeler

 

[fuddbeer]

Thanks very much to both. I never thought about simply searching for the image. I would have to use the original from the book but with this help it will make my job easier.
Much appreciated.