Interesting image Denise.
i wonder about Kodacolor and it's archival qualities, I never found it that good based on my parents images and my own first colour negative/positive images were made on Agfacolor later in the mid 60's.
My father only shot Kodachrome and his mid 50's images up to Kodachrome II and the mid 60's have definitely faded some badly, My mother then took the family images always on Kodacolor, but the colours were always mediocre, unlike the Kodachromes, probably the lab and lack of exposure controls.
However I don't think any of our family Kodacolor shots have faded much, I can't be 100% sure but I know I chose Agfacolor because I'd always been disappointed in colour photographs, and the difference was startling. I had true colours at last.
Unless you lived and worked/photographed through it it's hard to describe the enormous leap forward Kodak films in particular made with the switch from C-22 to C41 and E3/4 to E6. Agfa were part way there with their own separate processes and Fuji had tamed E3/4 and had begun to take business from Kodal, after C41/E6 Fuji never looked back.
Ian