There are numerous double inverted and shifted overprints, and it is supposed
made purposely, leaving clandestine from Casa da Moeda.
*The best known error occurs is in the legend "LOURENÇO MARQUES".
- The "E" of "MARQUES" is substituted by "F" and word turns "MARQUFS
- Four stamps, with this error (2½Rs, 5Rs, 25Rs and 100Rs)
*Inverted overprint on stamps 5Rs and 80Rs
*Double overprint on 5Rs