Jorgen - I think these are the ones I had made a few years back? If so, then the chap who actually made them for me, Willie McKenzie at Austin Reproduction Parts would be the man to contact. You can find him here...
Jorgen, Keith Herkes of the Vintage Register had some medallions made a few years' ago. He used to be contactable on kdrm@herkesmg.freeserve.co.uk John