Just dug this Eagle Plate/Buckle yesterday with my AT Pro and the 5x8 coil. It was found in Southeast Louisiana north of Lake Pontchartrain. It rang in clear at 81-82 and appears to be stamped brass - non-magnetic and measures 2 1/8" in width x 2 3/4" in length (54mm x 71 mm). The first picture is the dug picture after a light brushing with a toothbrush. The last 3 pictures were after more cleaning. The eagle is looking to its right and is holding an olive branch in its right talon and 3 arrows in its left talon. The boarder appears to be laurel wreath and I don't see any stars on it. On the back you can see where the belt loop and hook were attached. Did some research but have not been able to find anything like it. Just not sure exactly what it is or if it is Civil War Period or not.