A great image. I’m putting it up here just as I don’t want to forget it. I enjoy how both aspects of Mercury are emphasized: bringer of wealth (purse), as well as bringer of peace (caduceus).
The image is from Galinsky, Venus, Polysemy, and the Ara Pacis Augustae, AJA 96.3 (1992): 457-75, at p. 473. Here’s what it says there about: