I found these on bell crown covers. I'm not sure about them. The one on the left is 1 5/8 inches tall and has a nice patina. I believe the screw back and washer are a white metal. No makers marks. The larger EGA on the right measures 1 3/4 inches tall, looks much newer (looks unused) and the screw back is marked THE VICTORY PATENTED. No other markings. Please help. Thanks.