#TBTNLO: celebrations in the 60's

Mr Lankhorst (draughtsman), Martin de Roo (patent filing department) and Bob van Popta (patent administration) at one of NLO's events in the sixties. The text on the white board will be recognised by some as the refrain from the song from the famous Dutch TV series Farce Majeur, which aired from September 1966 until 1976.