Can anyone identify the model year of this Citroen Traction Avant?

http://www.ebay.de/itm/e61-Foto-orig-1955-Oldtimer-Citroen-DDR-KFZ-Kennz-KM-Stadt-Briefkasten-ak-3-/200817167489?pt=Fotografien_Fotokunst&hash=item2ec1a2cc81#ht_1167wt_937

http://www.ebay.de/itm/e62-Foto-orig-1955-Oldtimer-Citroen-DDR-KFZ-Kennzeichen-Sachsen-Karl-Marx-Stadt-/200817380920?pt=Fotografien_Fotokunst&hash=item2ec1a60e38

http://www.ebay.de/itm/e60-3x-Foto-orig-1955-Oldtimer-Citroen-DDR-KFZ-Kennz-Sachsen-Karl-Marx-Stadt-/200817164248?pt=Fotografien_Fotokunst&hash=item2ec1a2bfd8


The pics were shot around 1955 in Karl-Marx-Stadt/DDR.