Not certain of the detail or details your looking for but here are a few examples
Not a popular option and when they were ordered on cars with manual transmissions
These all appear to be factory installed
Owner added an additional gauge to this set
In reference to Jeff's third photo, where you can see the channel for the wiring run down the column. We are installing a reproduction rally pac in a '66, that we pulled a '65 high profile rally pac out of. The channel in the photo is secured to the dash (as well as in the reproduction instructions). The bracket on the channel that we have is contoured to the curve of the steering column. We are trying to replicate most accurately. Before installation, we would like to know if there is a difference between plants and date codes, or if all styles are accepted.
Thank you for any help in advance.