[aquarius31]

Very excited to pick up this unique belt buckle. It's not in great shape but displays well overall and possibly dates to 1860's-1870's as the manufacturer (Jacob Gminder) was in business at that time manfacturing medals and military buttons. I have seen one other example but not with both parts in tact. That was key to identifying the manfacturer as the back of the interlocking piece includes "J. Gminder Balto." A quick google search did the rest. It's not clear to me what is represented in each of the illustrations on the sides.

I think this is made of copper but have no experience in metals. Any recommendations on storage and how to prevent further oxidization would be appreciated. Thanks.