Fig. 6

Pyrogram of reddish pigments obtained by THM-Py-GC/MS indicating the use of animal glue (no. P1–P10), drying oils (no. O1–O11) and beeswax (no. W1–W13) as binding media
Pyrogram of reddish pigments obtained by THM-Py-GC/MS indicating the use of animal glue (no. P1–P10), drying oils (no. O1–O11) and beeswax (no. W1–W13) as binding media