Detail of a rock carving
This is a detail from one of Sweden’s largest rock carvings. It is one of two horses that are pulling a carriage. The carving is dated to the bronze age 1800-500BC. The carving is called Örstaristningen and can be found close to bird lake Angarnssjöängen in Vallentuna. You can buy this picture from Alamy at this link. I used a Canon 5D for the photo. Below is a 3D model of the two horses.