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 Supply Secretary - Attn: Mr Holland - Ikara Handbook Ammendment No.2 6 Copies for retention and action - Signed A.S. Cooley Secretary (20/7/67)