North Borneo Labuan 1904 4c on 50c maroon, type 19 surcharge, error surcharge double, SG136a.
A fine mint example with large part original gum. Typical yellowish gum but fresher than usually found.
A spectacular and rare error. The unusual error comes from columns 9-10 of the one sheet of 50 that existed.
Stanley Gibbons catalogue value: £375.
