Help with photoshop

Hello, i have a picture and it hides some important iformation for me. im not very sure how it is done but i think they may have used the "Rectangle Tool". Is there any way for me to know what is "under the box" ?
help will be very much appriciated.
thank you
(the original picture is bmp. this one is jpg converted when i uploaded to photobucket)

your kidding right?

iDad said:

your kidding right?

no i am not kidding. the picture i posted its not the one i actually want to reveal the information but an example i made to illustrate what i need help for. i would preefere not to post the original one.
i know it seems a little odd but i im not kidding and it is important to me.
thank you

unless the image is saved somewhere in layers you'll not be able to see what is underneath

iDad said:

unless the image is saved somewhere in layers you'll not be able to see what is underneath

no, i just have that bitmap image.
thank you for your help.

There is "no under the box".
It's an image of a sign with a black rectangle.

If I take a photo of a building, that's it, it's flat.
There is no way to remove the building to reveal what's behind it, it's a flat image.

is useless. we cant read that.