not recognised sensor

hello my name is Daniel, first time here, please does anybody recognise this sensor?
Notice one square shaped pin plated colour, and another thin one, copper colour.
It has no marks at all on it.

(please tell me if the attachments can be seen)
Thanks in advance.

Daniel

Captura2.JPG

Captura3.JPG

It is a shake switch (motion detector switch), similar to this one.

Delta_G, Jremington thankyou very much for your answers.
You've been very helpfull.
Cheers!