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reel es cower qrPota m cyanide was identifie n the hollow “tips of ‘the Q1886 through Q1899 cartridgess The potassium Cyanide was sealed in the hollow tips of the cartridges with a paraffin type wax. oy ~ No cyanide was found in the Q1895 and Q1900 cart- ridges, It is raoted that the Q1900 cartridge did not have a plug in its hollow tip. — Specimen Q1904 is a .38 Special caliber cartridge case of Western manufacture which was identified as having been fired in the K83 Colt revolver. The K83 revolver was . @lso identified as having been the weapon in which the previously submitted Q1013 through Q1029 and Q1031 through Q1037 cartridge cases were fired, Specimens Q1013 through Q1029 and Q1031 through Q1037 were recovered from the hallway closet at 1827 Golden Gate Avenue, San Francisco and were described in Laboratory report PC-K7449 PR, dated May 24, 1974, - Specimen Q1903 is a .38 caliber cast lead bullet which has been fired from a barrel rifled with six lands and grooves, left twist. Although the rifling impressions present in the Q1903 bullet are the same as those produced by the K83 revolver, specimen Q1903 is mutilated and lacks sufficient individual microscopic marks of value for ident- ification with a weapon,’ -30 CARBINE CALIBER CARTRIDGE CASES Specimens Q1905 through Q1913 and Q1918 are .30 Carbine caliber cartridge cases, ~The Q1905 through Q1913 cartridge cases were identified as having been fired ina Single weapon. The Q1918 cartridge case could not be associated with these other cartridge cases and could possibly have been fired in a different weapon, The "WW .30 CARBINE" headstamps present on the Q1905 through Q1907 cartridge cases indicate they are of Wiuchester- Western manufacture. The "LC68" headstamps present on the Qi908 through Q1913 cartridge cases indicate they were manufactured for military use by the Lake City Ordnance Plant, Minneapolis, Minnesota. The "R-P 30 CARBINE" headstamp on the Q1918 cartridge case indicates it is of Remington-Peters manufacture. The Qi905 through Q1913 and Q1918 cartridge cases were microscopically -compared with all similar specimens previously submitted in this case and the test cartridge cases obtained from. the fqur carbines recovered at the burned residence at i 146% East. 54th. Street, Los Angeles, California, without effgcting.ao identification,: - os Page~d-= or re a. "; — (Over) —_ PC-L3451. PR