Paul,The vendor I spotted was German, someone who regularly goes to Kempton. I could ask around if anyone I know can remember who he is. Kempton jumble was held a couple of weeks ago, so the next one will be about 3 months off.
I was hoping to get a mounting latch for a Miller rim, but he just had complete units. It is intended for a Lucas split rim, so I can mount a regular 7" reflector in the Miller shell.
Paul
The HL rim I'm looking for is for a British home market bike. I believe they are referred to as a 7 inch lamp, not the one for a US head lamp.
I think the rims seen by highbury731 are the ones I need. Any suggestions for contacting one of those vendors?