You would be amazed at what we might learn from your old unrepairable rusty mudguards. It could be just the shape of a rivet head, the thickness of a rolled edge or more. We will gratefully receive your unwanted mudguards and fenders if you know what bike they’re off and don’t want to keep them. Rather than throwing them away, or chasing a $5 sale at a swap-meet, we can document all the little details and preserve the sample for history. This good deed might come back to you when you need a new guard, we might have the information you can’t find.