A total of 3,175 articles, including 159 registered were cancelled with a special postmarker provided at a temporary post office at The Rock Showgrounds, N.S.W., between 9th May to 15th May, 1977, for the Girl Guides State Muster.
Details
- Date: 9 May 1977 – 15 May 1977
- Quantity: 3,175 articles
- 3,016 (ordinary)
- 159 (registered)