The 1946 Police Review Publishing Co "Summons Headings" Pocket Guide by Sgt J Hopker is a collectable publication focused on police-related themes. Designed as a handy reference guide for law enforcement, this pocket-sized book likely contains valuable insights and information relevant to policing in the mid-20th century. With its historical significance and detailed content, this publication would appeal to collectors of police memorabilia or those interested in the evolution of policing practices. Owner designation 1780 McAvoy, inscribed on edge.