Google is a treasure trove... Search for "CSX3066" and you get:
https://www.beckerautogroup.com/inve...27-s-c-csx3066
This has some of the history. It does mention not street use. Based on this it would appear that Becker ordered this one, probably "on spec"
since he's a dealer.
A similar search for CSX3067 shows it was auctioned twice (in 2020 and 2021) but did not meet reserve. There is a dangling link of 3067 to Becker so he may have originally purchased both.
Also there is a lengthy thread here:
Mystery solved. Shelby Trust to sell Real Cobras
Seeing Beckers wording and other searches reminded me of the word to use for these. I used "resumption Cobra" instead of "continuation Cobra"...