Not too long ago there was an ad from a gentlemen in Russia or Ukraine (just months ago) about doing a cleaning mark, scratch removal and recoat on lens surfaces. I'm not sure if I read it on this forum or RFF but it seems he had acquired the old ARAX equipment and the work would be professional. I've lost my links to the postings and would be happy to hear of anyone else that could put me in touch with the person or a link. I have a few older folder cameras that would really benefit form a pristine front element. Let me know if any members have the information to get hold of this technician, thank you, Bob Nancarrow in Michigan.