Yes, it is FORVNA REDVX but Jochen is not referring to the wheel. There is an extra object behind the throne (between the normal
cornucopia and the E) that does indeed look like a
shield. A quick survey of WW and other web sources confirms that this is an unusual, even anomolous feature. It is a wonderful
Christmas gift, one that I
had not seen before, but this may be a case of artistic license!