The sounds of chain forging using a forge hammer and anvil were recorded during a presentation in the Chain Forging Museum in Fröndenberg. They form an...

The manual coffee grinder from the 1960's was used in households to grind roasted coffee beans for brewing. With the advance of industrialization these...

Manual desktop telephone exchange with wooden casing, a dial and a Bakelite handset. Manual exchanges were in use from the second half of the 19th century....

The mechanical train destination indicator probably dates back to the 1940s and displayed information about the destinations of arriving and departing...