strange unmarked silver neckless

[sirdutch]

Hello,

I'm new to here. I'm for holland and as a hobby I buy silver objects in second hand stores and garage sales. Today I have boughed this strange neckless thing. It is not marked, If been looking for an hour but can not find any. If tested it very well with the magic water and it is solid silver. The strange thing is that is is casted solid silver. You can see the little cracks and pits.

So does anyone have any idee where it came from and the age? I'm puzzled;)

the picters

[img][img]https://s19.postimg.org/mt2qxs6i7/IMG_2514.jpg[/img][/img]
[img][img]https://s19.postimg.org/5r9wvorn3/IMG_2515.jpg[/img][/img]
[img][img]https://s19.postimg.org/qznld463z/IMG_2516.jpg[/img][/img]

see you!