17-600 Quill Guide Key

[tigercreek]

I'm nearly finished disassembling a 1963 17-600 DP and when I removed the quill I was never able to find the quill guide key.
I guess it is missing from this machine.
Does anyone have a picture of this piece?
Is it just a rectangular piece of metal that rides in the quill slot?
Thanks for any help.

 

[Davefr]

Here:

 

[tigercreek]

Thanks but that's not the key I'm asking about. That's the one covered by the clip on the lower spindle. The one I am looking for appears to run in the slot of the quill - #120 in the parts diagram.