As far as I know, all 14 x 5.5" "Hemi" wheels had the eyebrows around the valve stem.

These raised crimp marks are visible in the picture of the black wheel posted, if you look closely.

Hemi wheels did not have 5 evenly spaced eyebrows around the circumference of the rim, however. I have seen other early 14 x 5.5" wheels with this feature.

Another tip-off is the backspacing. The rim shell protrudes a little from the wheel center on real, 14" Hemi wheels. The edge of the center is flush with the rim shell on other (probably pre '66) 14 x 5.5" wheels.