You have a good eye Pete. It is a Maico 81 490 pipe,,,
Not mine,,,
It started life as a Maico only toque pipe
not impressed what so ever with the welding,, nice original curvature and construction though,,,, it has been modified since then to suit a reed 490 cylinder,,,,
For me it's just a part of a job lot that I am repairing, cleaning and painting, etc,,,
Wet weather,,,,, finally glad to have an outside dunny for more reasons than one,,
emergency paint booth mate