Physical description

Five Log Books from Victorian Air Observer's Corp. (handwritten) in:
1. June 1942 - blue cover / red spine (cloth)
2. March 1943 - green cover / red spine (leather?)
3. 1943 - roster book from 29/4/43-13/8/44 (Post No. WJ6)
4. August 1944 (Post No. WQ1)
5. February 1945 (Post No. W21).
3. 4. and 5 - plain cardboard with black spine (plastic?).
Lists names of Chief Observer, regular observers and emergencies.