Royal issues of copper coin in 1797,1799,1806,and 1807 drove the earlier tokens out of circulation but due to rising metal prices, no more official copper coins would be produced until 1821. Predictably , penny and halfpenny tokens were issued again in large quantities from about 1811-1815. These tokens exist in hundreds of varieties and a nice circulated common type sells for $10-20 or so. The designs are very "machine age" and illustrate the mechanics of the Industrial Revolution.
images courtesy of Cybercoins
The Seaby books listed on my 17th Century page are again useful for this series. A new standard reference has just been published and is readily available- BRITISH COPPER TOKENS 1811-1820 by Withers.
