Round as a moon isn’t surprising, but the addition of the spring, makes it richer and fuller and a more resonant metaphor.

See also the bestellar reviews, complete with rich quote-mosaics, of Adam Nicolson’s magnificent Why Homer Matters and Logue’s War Music, a muscular rendition of several books of the Iliad. 

‘His shield as round and rich as moons in spring.’

Source: Christopher Logue, War Music: An account of Books 1-4 and 16-19 of Homer’s Iliad, London: Faber and Faber, 2001, p. 207

Photo credit: unsplash.com – Linda Xu