This is the first time that the royal arms have provided the main design for one side of the English or British Great Seal. The obverse of the 1953 version depicted the Queen on horseback, dressed in uniform and riding sidesaddle, as she used to attend the annual Trooping the Colour ceremony for many years until the late 1980s. The seal's diameter is , and the combined weight of both sides of the seal matrix exceeds . Usage The Great Seal is attached to the official documents of state that require the authorisation of the monarch to implement the advice of His Majesty's Government. Under today's usage of the Great Seal, seals of dark green wax are affixed to letters patent elevating individuals to the peerage, blue seals authorise actions relating to the Royal family, and scarlet seals appoint bishops and implement various other affairs of state. In some cases the seal is replaced by a wafer version, a smaller representation of the obverse of the Great Seal embossed on coloured paper attached to the document being sealed. This simpler version is used for royal proclamations, letters patent granting royal assent to legislation, writs of summons to Parliament, licences for the election of bishops, commissions of the peace, and many other documents. It formerly constituted treason to forge the Great Seal. The Great Seal of the Realm is in the custody of and is administered by the Lord Keeper of the Great Seal. This office has been held jointly with that of Lord Chancellor since 1761. The current Lord Chancellor is Dominic Raab. The Constitutional Reform Act 2005 reiterates that the Lord Chancellor continues to be the custodian of the Great Seal. Though, in the past, the Great Seal has been delivered to and remained in the custody of the Sovereign when it has been used to seal instruments that related to or granted gifts or emoluments to the Lord Chancellor. The Clerk of the Crown in Chancery, who is also Permanent Secretary of the Ministry of Justice, heads His Majesty's Crown Office, and is responsible for the affixing of the Great Seal. He is assisted by the Deputy Clerk of the Crown. Day-to-day custody is entrusted to the Clerk of the Chamber, and subordinate staff include a Sealer and two Scribes to His Majesty's Crown Office. Section 2 of the Great Seal Act 1884 governs the use of the