Administrative record (item) - CAC Correspondence Relating to the Ikara Project for the RAN - Ex. 200/220 Project 9.4/9.5: Secret - G.30, Letter from Dept of Navy - Ikara Technical Circular No.5 - testing caused failure of four bolts - to HMAS Perth & Yarra cc'd CAC - Signed Cmdr Stonebridge Director of Weapons