Have searched thousands of side covers, frame covers, fairing, and cowling parts. Can not find what this belongs to. Any help would be greatly appreciated. The part is 20" long, has placement for 2 reflectors. I have this one in black and a right and left pair in maroon. Marked with A & B, scratched in the back, no other markings. Most parts I have are from th 1980's. Thank you for taking the time to look!