This drawing was made by an eye witness. The man told me he saw this stencilled painted bear with a text (company name?) in German inside the fuselage. The size is about 30cm x 6cm . It represents a walking ice bear. It has nothing to do with a Staffel emblem. Does anyobody know which factory used this mark for quality controls?

Any help would be greatly appreciated, it could lead to the identification of this aircraft.