Date of Issue: 20 May 1998, Description: NVI Fragile Forest (Archer Fish)
This is a Singapore Issue, Stanley Gibbons Catalogue # 937, 25th Anniversary of Singapore Zoological Gardens and Launch of New “Fragile Forest” Display. Stamps are multicoloured and printed on Phosphorised paper and self-adhesive with a perforation of 12 x 11.
Singapore takes great pride in whatever they do and mistakes are rare. Being a used stamp, this oversight is indeed rare in that it passed unnoticed through so many hands.
The freak stamp is on the left.