Getting back to bone color, my understanding was
I was just taking pictures to get "back to bone color"
My understanding was that until '78, all bone was not marketed with a color. Collectors coined the terms green bone, red bone, brown bone, and chestnut bone. "True" red and green bone should be from 1969 or earlier. Most case tested era are green bone. I believe red bone did not appear until the 40-64 xx era. I believe chestnut bone did not appear until the 70s and it's appearance was brief. In '78, the first marketed bone color released on a peanut; Appaloosa Bone. It was such a success that they opened up a few other lines to appaloosa bone and introduced a new satin rose. By the mid 80s, most knives were delrin. By the 90s, case started reintroducing bone, all of which had marketing names; the ones we are familiar with today.
Here is my best attempt at a display of pre-marketing bone color leading up to the first marketed bone color; Appaloosa Bone. One is true green bone, the other (in my mind) is red (but not true red) bone, then brown bone, and appaloosa bone.
I say my 32 is red bone but not true red bone due to the era (post-1969). This seems to be a self imposed rule by collectors. But, it also does not appear to be chestnut as collectors often define this as "more of a brown color and often have light tan to yellow accents in the bone, particularly around the edges".