The original chest lock from Birka is dated to the 8th or 9th century and was found during excavations on the island of Björkö in Lake Mälaren in Sweden. Locks of this type were probably modelled on Chinese locks. A padlock like this was simply indispensable in the Viking Age for keeping valuables and utensils safe in personal chests.

The locking mechanism inside the padlock consists of a pin with attached springs that lock the padlock. The key, which has two holes, compresses these springs when it is pushed in and pulled upwards. The entire upper part of the Viking lock can then be opened together with the bolt.

To open, push the key all the way up and press it firmly against the head plate, overcoming a slight resistance.

Dimensions
Padlock: 55 mm x 35 mm x 70 mm
Key: 11 mm x 27 mm