Ornithological Society · twenty-fifth anniversary · 3c

Dettalji tekniċi

Awtorità emittenti

Malta General Post Office

Użu postali

Posta

Munita

Lira Maltija · deċimali

Disinjatur

Richard J. Caruana

Stampatur

Printex Limited, Malta

Proċess tal-istampar

Lithography

Daqs tal-bolla

Mhux dokumentat

Perforazzjoni

14 × 14

Filigrana

Multiple Maltese Crosses

Karta

Mhux dokumentat

Kulur

Mhux dokumentat

Kwantità

Mhux dokumentat

Sorsi u verifika

First day and denomination are supported by the contemporary report. A precise design-to-value caption and independent specimen cross-check remain open.

• J. Farrugia, contemporary issue study, PSM 16(2), pp. 29–32 ↗

Immaġni u attribuzzjoni

Il-permess għall-immaġni għadu mhux ikkonfermat

Original basic design/value types; documented major paper, watermark and perforation alternatives are separately identified. Unchanged reprints, errors and plate/pane positions are excluded.