Pos Malaysia released a set of 4 stamps on the topic of medicinal plants on 11 December 2004. Perforation flaw was recorded on 50 sen stamp (kacip fatimah). The horizontal perforation was slightly (2 mm) shifted upwards causing the bottom of the plant image getting into the adjacent bottom stamps, and the words 2004 and Labisa pumila (the scientific name of kacip fatimah) are sitting on the perforation.
Horizontal perforation shifted 2 mm upwards.
A normal single stamp for comparison.