An extremely fine used imperf single of the 20c blue King Leopold I from the 1849 King Leopold I Issue, 4 full margins.
An extremely fine example with 4 full margins. According to Scott, full margins on this issue are 1/2mm, and both the left margin and the bottom margin exceed this and so this grades XF90.
Scott values this at $57.5, so we estimate it at $80. The stamp offered here grades 90 as follows:
