NOw, Ed, don't be that way!
Even you young guys like Ed have been around old PBX mainframes that had lead terminals similar to a mini-central office. Lead, due to it's type of manufacture had extra pairs just in case there was a bad pair. Depending on who made it 1 pair per binder or three for 100 in larger counts.
When looking at the end section of the cable one "T" divided the binders, send/recieve.
"D" wrapped the shield around one or the other binder.
Several types of Japanese PIC, most followed the pulp colors with the x-pr having a gold stripe. And yes some of the Japanese PIC by some makers had pink, orange, whatever --- seen that on some of their PBX mainframes.
Streamers were the maker's info, sometimes to include footage, sometimes just in the cable sometimes around the binders.
Justbill had the right answer on the upside down lead terminals --- wire them backwards when it is spliced.
There sure are a lot of you guys out there that know more about this old stuff then will admit it!
Have a good weekend,.
KLD
