Lee Harvey Oswald.238 Since the note was written almost entirely in the Russian language, which uses the Cyrillic alphabet (as opposed to the Latin alphabet used in the English language), in making his examination Cadigan employed not only Oswald's English language standards, but. also letters written by Oswald in the Russian language.239

The Homemade Wrapping Paper Bag

In the absence of watermarks or other distinctive characteristics, it is impossible to determine whether two samples of paper came from the same manufacturer.240 The homemade paper bag found on the sixth floor of the Texas School Book Depository following the assassination was made out of heavy brown paper and glue-bearing brown paper tape, neither of which contained watermarks or other distinctive characteristics.241 However, Cadigan compared the questioned paper and tape in the paper bag with known paper and tape samples obtained from the shipping department of the Texas School Book Depository on November 22, 1963, to see if the questioned items could have come from the shipping room.242 The questioned and known items were examined visually by normal, incidental, and transmitted natural and electric light, and under ultraviolet light; 243 examined microscopically for surface, paper structure, color, and imperfections; 244 examined for their felting pattern, which is the pattern of light and dark areas caused by the manner in which the fibers become felted at the beginning stages of paper manufacture; 245 measured for thickness with a micrometer sensitive to one one-thousandth of an inch,246 subjected to a fiber analysis to determine the type of fibers of which they were composed, and whether the fibers were bleached or unbleached; 247 and examined spectrographically to determine what metallic ions were present.248 The questioned and known items were identical in all the properties measured by these tests.249 (The width of the type on the paper sack was 3 inches, while the width of the sample tape was 2.975, or twenty-five thousandths of an inch smaller; however, this was not a significant difference).250 In contrast, a paper sample obtained from the Texas School Book Depository shipping room on December 1, 1963, was readily distinguishable from the questioned paper.251

Examination of the tape revealed other significant factors indicating that it could have come from the Texas School Book Depository shipping room. There were several strips of tape on the bag.252 All but two of the ends of these strips were irregularly torn; the remaining two ends had machine-cut edges. This indicated that the person who made the bag had drawn a long strip of tape from a dispensing machine and had torn it by hand into several smaller strips.253 Confirmation that the tape had been drawn from a dispensing machine was supplied by the fact that a series of small markings in the form of half-inch lines ran down the center of the tape like ties on a railroad track. Such lines are made by a ridged wheel in .a tape dispenser which is constructed so that when a hand lever is pulled, the wheel, which is