Cavendish is hollow-faced and hollow-eyed when he throws him on to a fresh horse at first light. ‘Call in some favours. There's hardly a gentleman in the realm that doesn't owe my lord cardinal something.’
It's late October, the sun a coin barely flipped above the horizon.
— Wolf Hall by Hilary Mantel
Should I understand "the sun a coin" as "the sun looks like a coin"?