[Heathkit] HP-410B - need selector switch knob

[Robert Myers]

Not quite 'Heath' but I wanted to align some Heathkit gear with a VTVM I
acquired ... :)

 

I need one of the two large selector switch knobs (black Bakelite) for an
HP-410B VTVM that I am restoring.  I know I could use another knob that
doesn't look like the original, but I am trying to keep this as original as
I can.

 

Does anyone have an idea where I might be able to buy one?  Does anyone have
a spare I can buy?

 

Thanks,

--- Rob, VE3JQL