A restored gable at a house in Amsterdam dating from 1742. In animal symbolism the ostrich is an example of "strenght through resistance" and the story is the ostrich can digest the stone and iron in his stomach. But with a stone or horseshoe in its beak, he is also a symbol of vigilance and alertness. The original house where the gable was placed has been demolished and it is replaced on a former bathhouse from 1924.
You can see it here at the far left side. Linking to "Signs, signs2"