Knobs 19 & 20 Recut
Knobs 19 & 20 were originally cut as simple cylinders, to show any iridescence in the woods. Both are made of two layers of 3/8” thick horizontal grain Maple with ¼” of another horizontal grain wood sandwiched in between, to make a 1×1” knob blank, ¾” tall. Knob 19 has a Purpleheart center, and knob 20 has Cherry. Purpleheart has very little real color (dark purple, fading to brown) and iridescence, but the Cherry has a surprisingly complex grain (for such a bland unfinished appearance) that is iridescent when polished. Maple also has strong iridescence. Both knobs have a superglue (SG) base coat, with layers of SG and a final finish of Kiwi neutral shoe polish.