I took a photo of this painting when I was at the Getty Museum last week, mostly to share with coin folk. Quentin Massys (or Metsys or Matsys) painted several morally judgmental portaits in the early 16th century, like this one, called Tax Collectors. Like other painters of the time, including Holbein and Dürer, it depicts the subject in extremely fine detail, both in terms of physical appearance and character. Naturally, I looked up close at the coins in the painting to see if there was anything I recognized, as they were also depicted with rather fine detail. Massys was from Leuven and/or Antwerp, which were part of the Duchy of Brabant. I have a couple coins of that era, including this Double Briquet of 1481. As these are rather common today, at least for 15th century dated coins, surely he'd have had one or more in the painting. I blew up the photo when I got home to take a closer look, and it looks like there are at least two of these depicted at the left and right of the picture below: They'd be much sharper had I been able to shoot at ISO 200 rather than ISO 1100.