Question: Factory gauges on Hemi Coronet R/T

I have seen several Hemi Coronet R/Ts that claim to be original and some have the round Rallye gauges and others have the sweeping horizontal gauges.

I have even seen both on original Hemi Coronet R/Ts.

What gives ?

Were the round Rallye gauges an upgrade or option ?

Thanks for any info.

yes, was an option.

FWIW, the Super Bee had them standard.