Abstract
Two modifications of the Igoe-Reynolds lift technique for examination of line margins to determine the sequence of intersecting ball-point pen strokes are proposed. One for handwriting-typewriting intersections and the other extending the lift technique to ball-point pen writings of some age that are otherwise insensitive to the lift efforts. Attention is also directed to the increased usefulness of spectular light reflection examination resulting from changes in writing materials and instruments, particularly as applied to handwriting-typewriting sequence determination. An inexpensive, readily improvised vertical illuminator is described suitable for use with stereomicroscopes and cameras.
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