Great Britain 1961 2/6 Postage Due, Inverted Block of Four

United Kingdom · 1961 · 2 shillings 6 pence (Half Crown)

This listing features a block of four Great Britain 1961 2 shillings 6 pence postage due stamps. The stamps are notable for being an inverted block, a significant printing variety where the block of four stamps is inverted relative to the surrounding sheet or pane.

Postage due stamps were issued to indicate the amount of postage owed by the recipient for underpaid or unpaid mail. This particular issue is from the Queen Elizabeth II era, reflecting the continued use of such stamps in the British postal system.