South Africa "Winged Springbok" Aerogramme

This is South Africa NGK #22, the 6 d "Winged Springbok" aerogramme with "Posgeld" in the indicium.

These appear to be different printings of this issue.  The second aerogramme in each of the scans seem to have a much bolder font used in the legends. Most likely, though, the bolder font appearance is only the result of a more saturated print.


Reference:
NGK, Aerogramme Afrika 2012