LORENZETTI, Ambrogio Effects of Good Government in the Countryside (angel) 1338-40

LORENZETTI, Ambrogio Effects of Good Government in the Countryside (angel) 1338-40
Full resolution1,996 × 2,436 pixels, file size: 1.19 MB

Fresco, Palazzo Pubblico, Siena

What is the sign saying? Perhaps something about how peaceful the country is, now, when the government is good...