| 摘要 |
A method of providing at least one indicium (10) on the edges (11) of a plurality of stacked leaves assembled one on top of the other to form a book or pamphlet, each respective leaf having marks thereon on at least one face of the leaf adjacent said edge, the assemblage of the marks on the individual leaves forming said indicium on the edge. The indicium or indici a are broken down into elements and each element is assigned cartesian co-ordinates according to the X and Y co-ordinate system with Y ordinates be ing related to the pagination of a respective leaf, and X coordinate for said respective leaf corresponding to individual mark elements on the face of a leaf.
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