Nurse Set - 1941 - 1948 - White pens were sold as Nurse Sets and larger pens were sold as Doctors Sets. Both had the scarce thermometer case to go with the set. The pens and pencils come with red or black bands on the top indication the color that they write for night and day hospital charts. This set is complete with the thermometer case and original thermometer. It is a made in Canada set that is slightly more common than the USA models.