Swiss adjustable piano stool 1945 rocket foot

Scandinavian piano stool made in switzerland in 1945. Rocket-shaped footing (there is like a rocket side in tintin in form). Very solid with its compass footing reinforced by a metal piece that allies them together. The screw of the seat rotates perfectly (adjustable height of 46 to 64 cm). A few marks on the tray of the seat. Rare object with this shape and in this state. Sending fast and neat.