MALTA¼dValletta Harbour ¼d · watermark inverted and reversedImage unavailable
1901–1913Harbour farthing · inverted and reversed Crown CA watermark
Watermark orientation variety
Valletta Harbour ¼d · watermark inverted and reversed
¼d
1901 / Heritage
Harbour farthing · inverted and reversed Crown CA watermark
The combined inverted-and-reversed watermark state expressly recorded for the original single-Crown-CA harbour farthing.
1 stamp records · ¼d
One expressly observed combined state, not an invented permutation of two separately known possibilities.
Research notes: The first appearance remains unknown. The 1901 heading identifies the base issue; the individual range carries the uncertainty.