Panels were sold as "Titan" Hood Panel
You could have 2 different finishes
Difference shown on a 34 one
top one is standard finish
bottom is "ti finish"
Just checked, the one you are selling (according to old ARC catalogue) is Titanium.
(also seen these in alloy too)
ARC R33 part number was TFPBCNR33M03 or TFPBCNR3303