White Spurs

Esquires by creation, by the king putting about their neck a silver collar of SS and bestowing upon them a pair of silver spurs, from which they were called Esquires White Spurs. This was a difference of honour to that of knights who received a pair of golden spurs from which they were styled equites aurali or golden knight. The title of white spurs, though in point of precedence inferior to that of the knight, was nevertheless considered a hereditary dignity descending to the heir-male. According to W.C. Wade, the honour was mainly confined to Cornwall and the West Country.

Sources:

W. Berry: Encyclopaedia of Heraldry

W.C. Wade: Transactions of the Plymouth Institution & Devon and Cornwall Natural History Society, 1890-1891