WW1 stationery cover and single page letter 1919 Scottish Churches Huts, sent to Surbiton in Surrey, writing to his mother, sender mentions arriving in Calais again. 

Cancelled part Army Post Office 4, located in Calais throughout WW1, cover also has red Unit, PASSED BY CENSOR cachet. 

Condition as shown: Some damage to of cover 

ID: WW1 50141