Walter McCrone, a member of the team, upon analyzing the samples he had, concluded in 1979 that the image is actually made up of billions of submicron pigment particles.

• 小组的一位成员沃尔特，分析了他所持有的样本，在1979年作出了结论，指出肖像实际上是由数十亿个超微末微料色素染成的。