A25 interior group code not on fender tag
To answer my own question, MANY options were not coded on the FT. By coincidence, there is a well documented original survivor 72 Duster 340, also black, that has the exact same scheduled production date and most of the same options as mine. But unlike mine, it has an original broadcast sheet. That car's front disc brakes, power steering, and Sure Grip, options mine also has, don't appear on its FT but do appear on its BS.