WTB: Wood Knob & Schematic for Majestic 196 Radio - Chasis 460-A

Looking for an ORIGINAL wooden knob for volume which is on the left
side of
cabinet on a Majestic model 196 Cathedral radio (circa 1933). If
anyone has
one in their "parts" collection, please send email with asking price
and pic
(if possible). Also need a schematic and any associated documents..
the chasis is 460-A. Thanks, Greg in Chapel Hill, NC