Energy

Technical details

Issuing authority

Malta General Post Office

Postal purpose

Postage

Currency

Maltese pound / lira · decimal

Designer

Frank Portelli

Printer

Printex Limited, Malta

Printing process

Lithography

Stamp dimensions

33 × 20 mm

Perforation

13.75 × 13.75

Watermark

Maltese crosses, upright

Paper

Chalk surfaced

Colour

Not documented

Quantity

Not documented

Sources & verification

Research notes: All sixteen values were released on 31 October 1981, established by the contemporary study, diary and first-day hand-postmark. The journal publication year 1982 is not an issue date.

• Joseph Farrugia, contemporary new-issue study and diary, PSM 11(3), pp. 3–5; diary July–December 1981 ↗

Image & attribution

Image permission not established

Basic design/value types and explicitly documented major watermark differences; excludes unchanged reprints, plate/pane numbers, errors and repeated formats.