2 VFOG singles of the 1d+1d scarlet from the 1929-1930 Health Issue.
544 has a blue ink spot in the right margin. Examining under magnification reveals it is not a pen mark but likely comes from stray ink that was on the printing press when the issue was produced.
Gibbons values these at £31, so we estimate them at $25. The stamps offered here grade 75 and 80 as follows:
