The Yenko crest was used on some unmodified Yenko sold cars.
I have seen it on some Yenko sold Corvettes and Z/28s and other cars. It is not clear if Yenko used the crest as a normal dealer emblem. It may have been used as a bare emblem. I have seen it bare and have seen it painted with different styles of paint on the crest also seen it on Yenko race cars and on Don's personal cars.
I don't think the Nutmeg Firemist Metallic 1969 Yenko Nova is on the Vince E. 37 list because some articles called it the 38 th Yenko L78 Nova.
Warren D. had a lot of paperwork and history on the car if I remember correctly
here is the Nutmeg Firemist Metallic 1969 Yenko Nova at the museum
https://www.americanmusclecarmuseum....ova-yenko.html