University of Malta four-hundredth anniversary

2 rekords ta’ bolli · 4c / 30c

Ordinary basic design/value types plus explicitly documented major watermark differences. Excludes postage dues (separately researched), unchanged reprints, repeated formats, plate/pane numbers, errors and minor varieties.

• Joseph Farrugia, contemporary issue study / postal diary, PSM 23(1-2), pp. 40–41 ↗