Hi there,
When found on shoulder straps (
example) "RFS" stands for "Reichsfinanzschule".
There were male and female Hitler Youth leadership schools located in both Mehlem and Godesberg as follows:
For males:
1934:
HJ Obergebietsführerschule (
Obergebiet 3 West) in Mehlem
(Source) The Obergebiet was deprecated as a command structure in Sept 1934 and the school subsequently became the leadership school for
Gebiet 11 as follows:
Gebiet 11 Mittelrhein (later Gebiet 11 Köln-Aachen):
HJ Gebietsführerschule 'Baldur von Schirach' in Mehlem.
Photo of this school
Source
Later:
Gebietsführerschule II Baldur von Schirach, Mehlem
Source
For females:
1934:
BDM-Gauverbandsführerinnenschule (
Gauverband 3 West) 'Der Turmhof', Godesberg (
Source). The BDM-Gauverband was deprecated as a command structure in Sept 1934 and the school subsequently became:
Reichsführerinnenschule 2 des BDM, Godesberg
Source
I am not aware of any Reichsfinanzschule having been located in Mehlem or Bad Godesberg but will certainly look into it.