Good luck! they are rare as hens teeth. Very few survivors as they tended to get hit as in middle of V-grille. It is easier to find one off a '67 or '68 full size and use stainless steel backing plate. not original but looks nice. CARS may have one, and Buick club may be able to help also. Thats where I found a '66 skylark hood ornamate which are harder to find than these '67 grille emblems.
I have one that is old and worn
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