That tandem chopper is wonderful and wrong in equal proportions!
There was a bike on yesterday's ride which, while not intrinsically interesting - a 1970s step-through Falcon of non-descript frameage - was in such original condition that it was worth describing. An AXA rear mech - I didn't even know AXA had ever made such a thing. A spoke-driven mechanical odometer. Click click click click click click! And the rider was wearing a 1980's style, smoothly domed, almost motorcycle style, helmet with tabs for attaching a visor. He'd bought it a couple of years ago for a whole £15 and the odometer had read 93 miles, which he thinks was a genuine mileage for its probably 25 plus years.