NICOf14-1 to -7: Agricultural Household School Irenelaan/ Beatrixlaan Oosterhesselen (work number 161)
NICOf14-8 to -12: 2nd extension Christelijk Lyceum Julianastraat/ Linthorst Homanstraat Hoogeveen (work number 204/287)

NICOf14-1 through -7: photographer Jaap d'Oliveira (stamp)
NICOf14-11, -12: photographer Hein de Bouter (stamp)