for a Ron Kitching, a french Maillard/Atom 5 speed freewheel or an italian Regina 5 speed freewheel would be correct, depending on the hub's threading

ps- if yoy REALLY want to be period correct, a Milremo branded freewheel with the proper threading would be just the ticket. Ron was the UK distributor for many lines of French and Italian produced bike components and frames, many rebadged with his company's brand. His company was called Milremo , a cooperative trade venture between Andre Bertin, the french bicyle manufacturer and Mr. Kitching, who passed away just a few years ago.