....A little bit more detail maybe?. this ebay link has a better image of the map....
Find many great new & used options and get the best deals for Set of 3 British French Italian Frame Builder / Companies Bicycles Map Eroica at the best online prices at eBay! Free delivery for many products.
www.ebay.co.uk
It appears to say 'Soens' I'm guessing not Jim as his headbadge is distinctly different to the one on Beryl's bike, so maybe Eddie?, here's a link to the Classic Rendezvous section on Eddie Soens that sheds some light in the text on the popularity of their track frames......
Eddie SOENS & SOENSPORT 110 Boaler Street, Liverpool(Eddie and Jim were brothers) Updated 10.16.2013 “…Eddie Soens is best remembered as one of the greatest British cycling coaches of all time. Due to his influential training methods he helped win more British, Worlds and Olympic titles than any...
classicrendezvous.com
......and this Classic Lightweights builder page also mentions his track frames......
Matt