Quite a rare item now and sought after, the one above was from a dealer in France or Germany, he showed a pic of a lot of rusted ones he had on the HMVF , it was a lucky dip regarding what you got, it does look a lot worse than it is, but once a bead blast, and a new lamp holder made should be ok, need to fill the corroded spots on the bracket with braze etc, just a pity the impressed " L-WD MCT1A" can't be read as only slight bit left.....
The last I seen on ebay was around £80 (good but used).
All good fun....... engine is due to be fully stripped this week to see if any spares required (can actually get in the workshop without going blue) new Valve guide and valves for sure and crank case seals etc, fingers crossed piston and rings within tolerance but I doubt it ........ If you do know anyone with Matchless spares I'd like to get in touch with them.