Early and mid year Firewall harness clip

So I pulled my clip off a 67, thought it came off the firewall area, but I searched old pics, even ones when I first got it, no clip on the firewall.
I seem to recall it came from under the dash, it was in the way when I re-wired the car, and I thought it would perfectly fit on the firewall, and it did, like it was made to go there. I took a pic to find some more.

Where ever it was under the dash it fit perfectly, and I remember thinking I should take a pic in case I go back to stock, like the flasher holder I took off, but I kept going.

Maybe these were used under the dash as well?