Charles II period mourning ring for Anthony Lybbe 1607-1674.
Skull detail to the outer band much worn though the interior inscription very fine. ‘Anth Lybbe Ar Obijt 24th Sept 1674’ Makers mark W.
Size 7. Weight 5.8grams.
The Ar relates to Armiger, a person entitled to use a heraldic achievement.
I have discovered a detailed online biography in the Lybbe Ancestry.
He was the second  son of Richard Lybbe ‘The Sheriff’ of Oxon.(1582-1658).
1637 he married Mary Keate, daughter and heiress of Leonard Keate of Checkenden.  She bore him 13 children and lived to 1692, buried at Whitchurch.
1646 The Committee of the County of Berkshire sitting at Reading Abbey 14 April 
“Whereas the estate of Antony Lybbe gent. is sequestrated by this Committee upon an information that he was suspected to be in Armes against the Parliament: Now, for as much as no due proof hath been made before us since his sequestration:  It is thought fit and ordered by this Committee that the said sequestration be taken off and discharged: And that the Tenants of his land sequestered do pay their rents unto him as formerly.   Five of the signatories are Blagraves, like his mother.”
1649 "Information" was renewed, alleging that he rode in Arms with the late King's forces, answering to the name of Captain Libb.
1652 Upon the motion of Mr Blagrave at Haberdashers' Hall, London, he was finally discharged.
Antony did much buying, selling and mortgaging of property at this period.  The south wing needed to be rebuilt, the law suits paid for (and perhaps friends rewarded and neutrals encouraged).  The facts come from the Oxon. Archives.
1658 mortgaged Hardwick manor and 259 acres for £2,000.
1659 completed the purchase of Purley manor (begun by his father in 1629). This brought rights, including having a fishery in the Thames, that still belonged to Reginald Cecil.  He then mortgaged it and other land for £3,000.
1660 mortgaged Elvenden.
c.1660 paid £500 for the rebuilding of the south wing, destroyed in the Civil War.
1672 got Sir Thos. Tipping (the father of his son's fiancee) to redeem the mortgage of Hardwick and three farms elsewhere.  At the same time, he made over most of his estate as a marriage settlement to his son, Richard.
1672 (the very same month)  sold the rebuilt south wing plus other bits and pieces and a house in Goring (Lady Grove) to Samuel Howse of Reading.  And, for a peppercorn rent, he leased much woodland for 99 years to Alex and George Blagrave.
1668 signed a statement for the herald on the extant family  (Brit.Museum, D25, fo.6)
He was a J.P.
1674 died.  An inscribed slate in the Whitchurch floor states, inter alia, that he died in the 26th year of the reign of Charles II.  This, by implication, expunges the periods of Commonwealth and Protectorate.  He could now afford to flourish his royalism.
He made no will, his widow taking out Letters of Administration.
Antony was involved in plenty of law suits, apart from those relating to the Civil War.