Hi. New member here—’73 850. Wanted to introduce myself and ask a few questions… My mufflers (typical peashooters) are stamped “Campbells”, and also, maybe, “replacement”, but it’s hard to read. So they’re aftermarket I assume, but does anyone know anything about them/ the company?... a period correct option? Also, my left side handlebar switches, the paddle type switch: what was its original function? It does nothing on my bike. And unlike it’s righthand counterpart it only has one function. It only clicks upward, being blocked internally from clicking down. Silly questions, I know, but I’ve become obsessed with knowing as much as I can about the bike (to which this site has already been invaluable.) And… I’ve seen a few—very few—racks/ panniers that fit the Commandos—and what a thick line it is between what’s expensive (or ugly) and my need to carry things; so I’m going to build something. I’ve got a few ideas but it’s turning out to be a real feat of engineering. I just need a “trunk” type rack to lash a daypack to. Or something to carry a bag of groceries. Nothing complicated, but something—I think—that must be hung off/ from the upper shock mounts and supported in the rear. Any ideas?... Or anyone willing to post a photo or two of a home fabricated version? I’ve seen a couple searching the site but more examples would be helpful. Thanks.