Note the old spelling 'Conditorei' ('pastry shop'). Many words had their 'C' replaced by a more Germanic 'K' from the mid-1920s onwards.
This sign was painted on two occasions at least. The font used for the original version looked far more elaborate as the picture below illustrates.
Location: corner of Salpetergasse and Töpfersberg, Sangerhausen, Sachsen-Anhalt / Pictures taken on: 23/12/2009