Thank you so much everyone...
The Vikings had a variety of keys and locks, including padlock.
There are also a number of written sources, which tell about the importance of the keys, the housewife who carried the keys was the manager of the farm, and therefore had the highest rank on the farm, her man was the boss outside the houses / farm.
In the saga it is told that the God "Thor" who had lost the hammer Mjølner, to get it back he had to dress up like a woman, and it was mentioned that he had to wear keys at the hip.
In graves you will find keys most often in women's graves, but sometimes also with men, without we fully knowing the meaning of this.
Most of the Viking key are quite simple but solid keys without too much decor, this kind of key I found is high status keys that are richly decorated and really pretty slim, possibly these have been more symbolic and decorative instead for use ?
Thanks DocBeav, but the axe item it´s possible from a Parts of 19th Century Candlesticks....https://www.academia.edu/4503890/