Large sticker in Dutch national colours, for the voluntary reservist corps for the Dutch Military forces.
 
Issued in the 1980s, this sticker measures 12 x 12 cms, The telephone number shown was still in the old format, which was replaced entirely by the current system in 1995.
 
The slogan of the corps was "beschermen wat je dierbaar is", e.g. protect what you love.
 
The sticker is still in excellent condition