A large selection of field notebooks and essay books, belonging to 200570 Sgt J Johnston of B company  Reserve Battalion 4 Cheshire Regiment. There is lots of notes and artwork in the study of anti gas. Which was was studied at No.4 Battalion Anti gas school, Park Hall camp, Oswestry.  The amount of artwork and notes would suggest training performed was for an instructor at the very least.  Some fascinating notes and drawings and probably a lot of information lost to time a unique collection.