Claire Franklin Werz is a philologist, numismatist and possibly the world’s most prolific numismatic cartoonist. She has been drawing weekly cartoons since January 2011, which adds up to a total of about 375 cartoons (at least on April 11, 2019).
If you need to research Iron Age coins from Britain you have a new tool at hand: the University of Oxford provides online access to the most comprehensive typology on the subject, the Ancient British Coins catalogue – for free.