Can anyone tell me what this is , if it's not the nub

[Mich101]

Hi there , posted my scan on few sites and most experienced guessers say that no nub is captured in the pic. Can anyone tell me what it could be if it's not nub. I did think cord but would that not be too low 32093

[atomic sagebrush]

I see cord and tailbone, not sure what you're looking at.

I agree no nub