Sheet 87A/10/NW Constance Bay HIND 1023 First Edition 1943, reprinted 1943. First Edition, Aug 1943. Compiled from 1:40,000 air survey Jan 1943, and two-inch (1:31,680) published sheet 1886 corrected from air photographs Jan 1943. HIND 1023. Published SGI. Reg.No.801 X.D.D'43X'43. Printed SIO. Yard Grid IVB.