Labels of specimens from Meise Botanic Garden contain secondary data features, such as the handwriting, the colour of the inks, shape of the label and printed label decorations. (A) Specimen labelled Potentilla recta collected by amateur botanist Camille Francotte with distinctive label decorations (https://www.botanicalcollections.be/specimen/BR0000009398214) CC-By-SA (B) Specimen labelled Eriophorum angustifolium where the collector can be recognised from their signature (https://www.botanicalcollections.be/specimen/BR0000005134137) CC-By-SA (C) Specimen labelled Agathosma villosum showing distinct cup-shaped label (https://www.botanicalcollections.be/#/en/specimen/BR0000015671271) CC-By-SA (D) Specimen label of Alyssum calycinum collected by the former director of Meise Botanic Garden François Crépin, notorious for his hard-to-read but easily recognised handwriting; also showing his signature (https://www.botanicalcollections.be/specimen/BR0000010426135) CC-By-SA