A crease running through the center of a map where it was folded to be inserted into an atlas.
The two folded pages found in the center of the book, where thestaples can be seen.
The two folded pages in the center of a comic book at the terminal end of the staples.
Where the map is folded vertically down the center, or, two pieces of paper joined to make a double-page map in an atlas.
Many old maps have been removed from atlases. Often such maps have a vertical fold down the center. Opening and closing the atlas often results in a weakening of the paper at the centerfold, frequently necessitating repair. Browning tends to occur at the centerfold because the paste used to hold the map in the atlas attacks the paper.
A device used to produce centerfold film from flat film.
The type of film used on an L-Sealer Machine. The film is a web which has been folded in half as it is wound onto the core, allowing for an upper and lower web of film between which the product is placed for sealing on an L-Sealer Machine.
The centerfold of a magazine refers to a picture printed on a single sheet of paper and inserted in the middle of the publication. Since magazines are usually stapled together along the spine, the centerfold does not have any gutter cutting through the image. Centerfolds are also frequently much larger than the publication and then folded to fit.