This clockwork monoplane manufactured by Märklin in 1914 was one of numerous early 20th century tin toys made by German manufacturers to celebrate the achievements of the early pioneers of flight.

Extracted from Antiques Trade Gazette | Anne Crane

Model number 5423/1 was a 12in (31cm) long tethered plane, fixed to a cord, which flew in circles.

This example has been in the same family since it was bought in 1914 and comes complete with its original box and page of instructions.

It is coming up in a sale on February 28-29 at Hohenstaufen in Göppingen, which is, incidentally, the home of the Märklin company.

The starting price is €12,000.