I'll check back through my collection of Forest advertising and see if I can locate PROSSER's. I have "uncovered" MAYO'S Motor Engineers, Coach Builders and Cycle Agents, at the Newnham Carriage Works in Station Rd in approx 1910; in the area of the Town Hall and Gas works I wonder if this relates to Dorrell PROSSER ?

< the MAYO surname is associate with the HYDE estate" nr Newnham>