1999 (08) Scientists - 4d Post - Botanic Gardens, Belfast CDS + Linnean Society Meter Mark - DATE SLUG ERROR !!!

Lovely 4d Post cover with the stamps cancelled by the appropriate Botanic Gardens, Belfast CDS + Linnean Society Meter Mark.

The CDS year slug is UPSIDE DOWN - making the year show on the CDS as 66, not 99 as it should be.....

Code: 55700