Canada Official Stamps 1949 2c brown, left marginal block of 9, type O3 'O.H.M.S.' overprint. The centre stamp includes the variety with the "Missing stop after S" (R6/2), SGO163a.
Attractive and fresh block of 9, unmounted mint with full original gum. Trivial perforation toning (not affecting variety) and not detracting from overall fine quality.
Scarce in this se-tenant form.
Accompanied with a clear King George VI Expertising certificate of authenticity (2006).
The Stanley Gibbons catalogue value is £321+.
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