Watch List notes:

Great Britain, Queen Elizabeth II Issues, 1983 Christmas 12½p. "Christmas Post", imperforate horizontal pair from the upper right corner of the pane and with a further part perforated example at left, unmounted mint; some small wrinkles, fine and rare. S.G. 1231a, £3,500. Photo.

Estimate: £800.00 - £1,000.00