Thank you Paul.
with Pauls help I was able to find a "silver medal" of the same type, this also uninscribed. How would you do with the group of medals, sell as a group or split them up, Since the once without inscription could have been given do any "gold" medal reciver? The other two goldmedals are from 1900 Paris world fair and 1873 London international art industri fair ( this marked Husqvarna arms factory.