Stop appliance genocide

[orthophonic]

Maybe one of you guys can help me. Through a freak accident, the timer dial/knob on my 1963 Frigidaire DW-DUF got broken. I have put a generic knob on for now, but would really like to find a correct replacement. It is
Ivory and Chrome, Frigidaire used this same basic knob up to the mid 70's
in black & silver and plain black, any of these would do also. The same knob was also used on their portables and says Dishmobile, that is acceptable also.
If is says push to start, it will probably be correct or close enough.

Vintage parts dealers have not turned up one so far, but you guys that visit
graveyards (all gone from my area) may spot one.