Sandwich printing is a specific photographic procedure that’s carried out in a darkroom.
In order to create a sandwich print you must combine two different negatives into the negative carrier below the projector’s light.This process is usually carried out so that a photographer may superimpose specific photographic elements that wouldn’t usually occur on one singular negative, therefore two are used to create a unique juxtaposition within the resultant photograph.
This is my negative sandwich print ,however i scratched one of the negatives to add an usually unoccurring effect (this wouldn’t be present without the scratched negative) being applied to main negative.