Pale gold plated brass; these knobs are heavy in the hand. Top of the knob has the classic Gretsch "G" design deeply stamped in; there's a white pearl dot in the center and a red jewel. Knurling on the upper portion of the edge of the knob. Set screw fixing to a standard 1/4" solid shaft pot. Yes, these knobs will fit your '50s-'60s Gretsch exactly. Also fits many NEW Gretsch guitars distributed by Fender Musical Instruments. Brand New. Genuine Gretsch 9221026000. UPC 717669274726.