Hi JohnZ and Merry Christmas
NSFO means : Nasjonal Samling Fag Organisasjon.The date is 42. I bealive this shield is very rare. I have never seen one similar in Norway before. I have ask people collect the NS , and this NSFO 42 Viking Shield are one of the rare bird out there .
If some one have it in a collection ? please post some pics of it
LH