£1750.00

Canada 1949 50c green Official, type O3 'O.H.M.S.' overprint, lower left imprint plate block of 4, showing variety 'Missing stop after 'S' (R10/2), SGO169/a.

A very fine unmounted mint positional block with full original gum, (hinged in lower margin only).

An extremely scarce positional piece.

The stamp features lumbering in British Columbia.

The Stanley Gibbons catalogue value is £1,840+.

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