The Early and Late Record Dates shown are those published by Purves, or otherwise confirmed to me by various TPO collectors based on inventory in their respective collections.
Rarity factors shown have been deduced from the aggregate inventory of several major collections in this field, exceeding 10,000 strikes on loose stamps and 1050 covers in total; however, the statements on relative rarity are observations only and no warranty of accuracy shall be implied.
Reference: Victoria: The Travelling Post Offices and Their Markings (1865-1912) by JWRPurves (1979 |