Fig. 4

a Chronological position of the two dated oak planks AOTSP1 and AOTSP2 from Adoration of the Shepherds. The grey bars show periods covered by measured annual tree rings, whereas the white fields represent the minimum of missing tree rings towards the bark. The arrows show tree felling after 1526 and 1608 for plank AOTSP1 and 2 respectively. b The black line and arrow show the onset for the production period of the oak panel interpreted from the dendrochronological dating, c the panel makers and Guild brand marks on the reverse of the panel, d period suggested for the painting from the stylistic interpretation, e period the salvator size was commonly used by Jordaens, and f the lifespan of Jordaens. The red box shows the only period all applied methods overlap, which suggest that the painting Adoration of the Shepherds was likely painted within the narrow time frame December 1617 to 1618