Photo type 1 1968 - US Bill Toomey remporte la médaille dor décathlon Jeux soldes olympiques de Mexico

PSA Photograph Type Classification

• Type I– A 1st generation photograph, developed from the original negative, during the period (within approximately two years of when the picture was taken).
• Type II– A photograph, developed from the original negative, during the period (more than approximately two years after the picture was taken).
• Type III– A 2nd generation photograph, developed from a duplicate negative or wire transmission, during the period (within approximately two years of when the picture was taken).
• Type IV– A 2nd generation photograph (or 3rd or later generation), developed from a duplicate negative or wire transmission, during a later period (more than approximately two years after the picture was taken).