Postby davidross » Sun Nov 24, 2013 2:51 pm
The pin is probably Chinese.
I have found no definite meaning for the characters 安良里 and 祥安, other than that they both could be place-names. Best guess would be that the three-character mark is geographical and the two-character mark, the name of a retailer or sponsor unknown to me.
Neither is a silver mark, so you will have to draw your own conclusion about the metal content.
As for other details such as date, not much can be said from one photo of the backside, but perhaps someone else will provide a more satisfactory answer.
Regards
DR