1943 Aeronautical knowledge

As we clean out all the old buildings we are reclaiming here at Old Barn Woods we always come across little treasures like this.  This is a Certificate of Aeronautical knowledge we came across from 1943. 

It says “This is to certify that the below named individual has demonstrated by his performance on the PRIVATE PILOT WRITTEN EXAMINATION that he posses the minimum aeronautical knowledge legally required of a PRIVATE PILOT, as provided in section 20.125 of the Civil Air Regulators.  In those sections of the Private Pilot Written Examination for which approval (a) in indicated”.