Identifying Original Console Gauges

[KurtS]

Mothers Plastic Polish works too. Most auto parts stores will have it or something similar.

[69Z28-RS]

I had some Meguairs' plastic cleaner/polish, but it seemed to not do much; the toothpaste worked much better.. Maybe the polish was old?

[68camaroz28]

I've tried many and toothpaste works well for minor abrasions but for some serious work (just like cutting paint in) one needs some cutting action. I found Novus plastic polishing products can do the job and utilize 3, 2, & 1 compounds but it is time consuming. 
http://www.novuspolish.com/

[-vellu]

Old topic but what do you guys think about this? Reproduction or original?
At least the oil pressure gauge and maybe the temp gauge look different.