Angle Corbels:

The process of corbelling (projecting) a quoin, and occasionally an internal angle, to change its shape; often used just below first floor level. The corbelling of courses can change a squint (splayed) to square; circular to square or squint. A square quoin can be reduced to a splayed, or circular one, by use of plinth bricks; care is needed with the bonding arrangement and demands good craftsmanship.