Prompted by Tony Lyon’s interesting article on this subject I decided to comment on several points raised and add information about other Sydney mail known to me.
The navy has always been security conscious in times of war and generally it is impossible to identify the ship from which the mail was sent. Nevertheless sufficient items exist for an interesting study and I am currently working on a postal history of the Royal Australian Navy (RAN).
Published by kind permission of the author.
Before telling the story behind the fascinating cover illustrated, a description is necessary...