WW1 National War Savings Committee Sopwith Aviation Co lady worker's coupon book

A good original First World War period 'National War Savings member's card' bearing :
Member's Number S 182
Member's Name Whiltek Lily
Member's Address 110A Kings Road Kingston
Card Issue (Date) May 4 1918

This with rubber stamp 'Sopwith Aviation KINGSTON - ON - THAMES'. The inside has been stuck with eleven war saving stamps each worth sixpence.
Good condition.

Code: 61151