Good point! Guess that is why we should never make a determination of color sheen by a picture alone. Here is the same clamp taken at the same timeframe but the other side. Many parts were dipped in the semi-gloss primer used at main assembly. Agree in the picture it does look on the gloss side but sunlight, etc. can also play a part on how a picture looks sheen wise.
Here are some other pics I have from examining other clamps. This one I soaked in EvapoRust some years back to better see paint appearance.
And a couple more to add to the mix.