Drew;
Interesting bbls those, laminette ones. Do you know the grade of the gun they were on.
As to those D & E grades "Represented as having Damascus Twist" unless you have seen them & can confirm otherwise, I would bet they are not the "London Twist" as found on H grades & pictured above, but on those grades most likely a Three-Iron Damascus of increasing quality on the D. Even the G grade wears two-iron Damascus.

Miller/TN
I Didn't Say Everything I Said, Yogi Berra