PLAYING CARDS
Plantinga Oude Klare (Geneva) playing card
Picture from drank.verzamelt.nl.
Various backs of Plantinga Cognac or Plantiac playing cards, sorted in chronological order. First three are from when the company type was an "NV", definitely before 1947. The sixth is from in or after the 1950s, when Plantinga acquired the Louwrens Dijkstra winery in Leeuwarden. The eighth picture is from 1972 or later, after the Herman Jansen + Vlek merger.
Third and fifth pictures from drank.verzamelt.nl.