This is a recording of the presentation by Jonas Hällström RDP FRPSL at a meeting of the Royal Philatelic Society London.
Jonas presented a traditional class display relating to the high value Navigators stamps used by the Commonwealth of Australia in the period 1963-1974. Jonas explained how the set of 6 stamps, issued when Australia was using pounds, shillings, and pence, were re-issued as decimal stamps when Australia transitioned to using dollars and cents.
The stamps, featuring men who had undertaken expeditions to explore and chart the coasts of Australia, were high value stamps, intended primarily for use on heavier and larger items of post.