German WWII/Pre-war collar liners. These are unissued white collar liners for the tunic. They would button inside the wool collar for neck protection These are made without the button holes. There stamped "Gr. 39". These have been at one time cleaned so have a light glow under blacklight, but are 100% original. Some makers of these liners never put holes into them so that the wearer could add the slits himself to fit his tunic. NOTE: You can use a razor blade and cut three of four small slots in the liner and it will fit the buttons in the neck of your tunic.