[davemc]

I do have the 5-band version of the 16B tombstone. David Frush located a large black bakelite Philco knob with a set screw. Photo attached. Looks like this is a likely candidate for an original knob, since its shape would permit pulling it out to engage the slow speed dial drive, and the outer shape would match the larger bandswitch knob below it.

Thank all of your for your help!
Dave

[Image: http://mcclellans.com/Philco16BKnob-1.jpg]
[Image: http://mcclellans.com/Philco16BKnob-2.jpg]