He may not be deceiving people at this point.
I don't like, or recommend what he's doing but there are methods to create colors at temperatures that are metallurgically safe, using modest temperatures and chemicals. Oscar Gaddy once described his experiments in this area and I understand that Ithaca used such a process to rejuvenate colors at one point.
If he decides to go public with more details than just his statement, he could become credible in that potential buyers can decide their interest or lack thereof, in an informed manner based on aesthetics.
