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The England Finder is a glass microscope slide with a uniquely indexed grid pattern that allows individual areas of interest to be referenced.

All England Finders produced by Graticules Optics are identical. The purpose of the slide is to give microscopists an easy method of recording the position of a particular area of interest, so that the same position can be re-located at a later date, or by another person in another laboratory, or when using an England Finder in another microscope.