the photogram is thought to have been an accidental discovery ?

photograms are produced by exposing photographic paper to light for a set amount of time whilst an object or objects are placed on the paper
the objects can be anything you like as different items have different and unique qualities,

after exposing the paper with the objects on ' you then have to process  your image !!!

• developer is used for 1 min 
• then you have to place the paper in the "stop" for about 30 seconds
• then you have to place the paper in the "fixer" for about 5 mins

in this image above i have tried to re-create the spiral paper the manray did in 1922, 

i placed the paper on more of an angle and away from the light to give a more 3d look.

above is manrays image !!!!!