4th series:
- wide outer frame, double inner frame beneath "LONDON"
- without veins in arabesques
- letters "无年份" of "LONDON" not joined
Block-like shading over arabesques (Stone I)
6d stamp of 1918 surcharged in black - 2mm or 3½mm spacing between words
4th series:
- wide outer frame, double inner frame beneath "LONDON"
- without veins in arabesques
- letters "无年份" of "LONDON" not joined
Block-like shading over arabesques (Stone I)
The following perforation variant is also recorded on this printing:
- perf 11