Fig. 1. Pieter Bruegel the Elder, “Haymaking,” 1565, oil on panel, 114 x 158 cm (Lobkowicz Collection, Lobkowicz Palace, Prague)

Fig. 2. Detail of the signature in 19.164

Fig. 3. Infrared reflectogram detail of 19.164 showing the underdrawing of the sleeping man

Fig. 4. Infrared reflectogram detail of 19.164 showing the underdrawing of the scythe man

Fig. 5. Left: detail of 19.164, dead tree limbs; right: infrared reflectography of this detail showing that they were painted over the completed background at a late stage

Fig. 6. X-radiograph of 19.164

Fig. 7. Infrared reflectogram of 19.164

Fig. 8. Detail of 19.164: example of impasted brushstrokes, 4.75x magnification

Fig. 9. Detail of 19.164: handling of knife, 7.5x magnification

Fig. 10. Detail of 19.164: fingerprint in hayfield, 4.75x magnification