Details
unmounted mint 1912 (1 Jan.) 1d. bright scarlet, die 2, variety no watermark, an unmounted mint example from top-right corner of the pane showing the Crown watermark (inverted) in the selvedge at top; fine and extremely rare. R.P.S. Certificate (1986). S.G. Spec. N11(2)ab, unpriced. Photo
Further details
Note: Very few examples (possibly only two) are thought to exist