1968 Barracuda hubcaps and wheel covers

Were the hubcap or wheel cover option coded on the fender tag on a 1968 Barracuda.
Mine has no code for wheel covers. Does this mean that the code was not marked, or that it came with the base hubcaps?

Have have a very vague memory, from years ago, of being told that the wheel covers were not on the fender tag in 68, but I don't know where that came from.

Robert