Medieval silver-gilt Retainers ring Black letter 'S' Lancastrian?

Code: 11825

This is a rare medieval silver-gilt Retainers ring, inscribed bezel with Black-letter script comprising of conjoined "SSS". The 'S' would signify a Lancastrian supporter, Retainer or Knight. The collar of Esses would be a good example of the type. The Lancastrian Kings that would date to this period would be the likes of King Henry IV, V and VI. A wonderful early ring in good excavated condition.

OBJECT: Retainers Ring

CULTURE:  Medieval

DATE: c. 1400 - 1475 AD

MATERIAL: Silver-gilt

RING SIZE:    7  (US)      O  (UK)

SIZE: 20.17mm x 19.71mm x 3.54mm (bezel 11.20mm x 8.69mm x 1.79mm)

WEIGHT:  2.97 grams

PROVENANCE:  Formerly the property of an Essex collector