Modeller's Air Brush kit (Harringay N4)

Humbrol Modeller's Air Brush kit. Original packaging and carry case, glass paint tank, and glass mixing bottle. Adjustable spray flow. Runs on canned compressed air (not supplied).
Condition: Used, for painting model kits. Was working fine when last used in the late 1980s, but I do not have compressed air or paint to test it now.