This message from the TUC Chairman, George Gibson, warns war workers against gossip and careless talk which might leak defence secrets to enemy spies.

Title	"Where Bert is or what Jane is doing", TUC leaflet 1941 (front)
Maker	Trades Union Congress
Production Date	1941
Format	Leaflet
Copyright	Trades Union Congress
Holding Institution	TUC Library Collections, London Metropolitan University
Related Objects	"Where Bert is or what Jane is doing", TUC leaflet 1941 (reverse)