Commemorations 1990

4 rekords ta’ bolli · 3c / 4c / 19c / 20c

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.

Noti tar-riċerka: The perforation table repeats 20c in its second row although other fields identify 19c. The unresolved 19c measurement is omitted. Value-specific subjects remain unmapped.

• Joseph Farrugia, contemporary issue study / postal diary, PSM 20(2-3), pp. 61–62 ↗