The photo is of a poster with the ominous news that conscription was now the law of the land for all men, unmarried and married, between the ages of 18 and 41. Conscientious objectors would be compelled to make their case for exemption before local tribunals, who were often prejudiced against them and deeply unsympathetic.
For example, Harold Bing, an 18 year old CO, had his claim turned down –
‘You’re too young to have a conscience!’ he was told.