Sorry, about this, but I had to post this cropped guy from a 15thC painting by Matthaus of Kuttenberg. He's having a wash, having just been down the silver mine. Wouldn't look out of place on a modern beach would he?
The book in question is Goldsmiths. Medieval Craftsmen by John Cherry, published by the British Museum press.
This same painting even has a 'beach hut' and lifeguard tower for the guy.
The original painting is very similar to the 'Where's Willy?' (Waldo) story books of Martin Handford.
Below is the original painting. See if you can spot Speedo man! You can click on the painting to enlarge.
This is only an interim post while the author has a whimsical moment.
Normal service will be resumed over the weekend!