I am confused about the different terms of yellow micarta, other than AGM. I understand AGM was available 2004 to 2008 or so. As well I have seen and handled Delrin, so understand that material, I think.

But when it comes to Ivorite, linen Micarta, paper micarta, ivory micarta and Old Yellow, which I understand did not always start out yellow, I am flummoxed.

I welcome everyone's opinion and ideas. I have included a pic of 5 Model 5's I took recently. Buck feel free to "touch them up" with your picture magic.

The top pic is the Capt's Bone Linen. The second pic is a Kit knife constructed by Gail White in which he supplied the micarta.

No. 3 knife, all the spacers are equal, so I date this knife to 1985 or newer.
No. 5 knife is the Bear Camp Special I own and was made in June 1982 according to old RKS newsletters.
Now No. 4 knife, if you look at the spacers near the butt cap, the dark one looks gray. I believe this knife fits into the time period, 1977-85, when the middle spacer was black, but frequently turned green or gray.

The most important question, why does this knife have NO grain in the micarta?

Why the difference in the micarta of the Bear Camp and knife No. 4? They are from the same period.