Conder and other Tokens
Conder Tokens, also known as 18th Century Provincial Tokens, are a form of privately minted token coinage struck and used during the latter part of the 18th Century and the early part of the 19th Century in England, Anglesey and Wales, Scotland, and Ireland.
Beek, van e.a.: ENCYCLOPEDIE VAN MUNTEN EN BANKBILJETTEN
Bell, R.C.: The Copper Commercial Coins 1811-1819
BERRY, GEORGE - Discovering Trade Tokens
Schwer price guide to 18th century tokens
Williams, John Anthony: Cornish Tokens