I understood you. Let us begin from the fact that on your sign it was not originally another fastening. I.e., sign was by such original. On its performance (it is made a die), coating and to common form it is possible to say that it old. However, since it is not reward, but it serves as the sign of belonging, then I assume that there were the varieties of the fastening. Unfortunately, where you it purchased in the determination of authenticity a value it does not have. PS: For the contact with you I use electronic translator; therefore are possible errors in my transfer. :beer: