You are correct. The plate was removed and reattached by me after painting the frame.I'm the one who buggered the hole up while drilling out the rivet. The replacement rivet was almost an exact copy, the original being aluminum, I believe. Kp, my original post had the engine number 1001682. Attached is a photo of the bike as I found it in Yuba City, CA. Tomorrow I'll send a photo of the engine and frame number when I go into the office. Ill send a photo of the restoration status also.