65 chevelle question

[black69]

this may not be the right board to post this, but with all those with the knowledge on the l78, l79 cars related to 65 chevelles, I had to ask a question about an odd 65 convert my friend has. I am trying to help him sell it, but i told him to check something out first. i really dont want to join a chevelle board to ask one question:

the odd thing about this car, and he too knows l79 chevelles very very good, is it is a yellow black black 327/300hp automatic convert, with every possible option plus it has a build sheet, I looked it and i heard this was even rare, to have a build sheet. what puzzles him is its got the emblem showing 'custom' below the normal badge on the inside door panels. the car has air, 12 bolt, tilt wheel, power top, bumper guards, power buckets, power antenna i think, washer bottle, console, and even amfm. it pretty much all original.
in anyones travels, has anyone seen that custom interior badging on before? some chevelle person would know? it looks like it was not an day 2 add on.


bob