Mosrite Vintage M-stamped hat-shaped Knob set (Vol. Tone) This is an introduction to a set of V (Volume) and T (Tone) stamped knobs from the late 60s to the 70s. Vol (12345V) Tone (12345T) Please check the condition in the images. Thank you. * I believe you will like it, but please understand that no returns or exchanges are accepted.