by N.C. Hopson & R. Tobin , 1991 - 19994 volume set for the Postmark collector
Well illustrated. Lists all Post Offices in NSW and ACT with a brief history of each office plus details of all known circular postmarks.
To order this publication print out the (PDF) and post with payment to Philas
The Philatelic Association of NSW Inc.
PO BOX 220
Darlinghurst NSW 1300