Meccano
Meccano is a building set that lets people make models and small mechanical devices. It was made in 1901, and was from the United Kingdom.
Meccano Media
An early Meccano set on display in the Edinburgh Museum of Childhood
Museum of Transport & Technology's Meccano differential analyser in use at the University of Cambridge Mathematical Laboratory, c. 1937. The person on the right is Maurice Wilkes, who was in charge of it at the time.