Previously mentioned are the miners rights books, but there are many more.
You can search the catalogue via ARCHWAY
Here are but a few titles that may be of interest:
Thames Claim Plan Books (14352) - unknown - unknown range held: c.1869 - 1879, This series consists of books containing plans of mining claims administered by Thames Warden's Court.
Thames General Mining Records (15202) Holdings Dates 1896 - 1914, This series consists of general mining records kept by Thames Warden's Court.
Thames License Books - Grant of Special Claims (14398) Holdings Dates 1887 - 1899, This series contains Thames Warden's Court license books recording grants of special claims.
Thames Miners Right Butt Books (14345) Holdings Dates 1867 - 1868, This series consists of a number of butt books which contain copies of miner's rights which were granted by Thames Warden's Court.
Thames Resident Site Licences (15097) Holdings Dates 1879 - 1879, This series contains resident site licences issued by Thames Warden's Court.
Thames Wardens Butt Book Lost Miners Rights (14428) Holdings Dates 1868 - 1868, This series contains a butt book recording replacement certificates issued in place of lost Miner's Rights at Thames Warden's Court.
And so it goes on, for a wide range of dates, plus loads of court minutes, notes and letters.
A couple of examples below from one of the warden's books - water rights 1871 and 1868.
My special thanks to my 'archives-helper' Janette for sending me these; if anyone else finds anything interesting to share from archives....please email them to me (address top right of page)