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Stuart is right - about Leslie's Cube and in using a satin black paint to create an original-like finish.
If emissivity for a black body radiator is assigned the value 1, then polished brass rates only 0.05, replicating the experimental results created by Sir John Leslie in the 19th Century.
One then might rightly ask, why the "Brass Era" ? Perhaps pride of craftsmanship or decoration or both, during the early years of automotive history. Today, polished brass name plates, signs on buildings and doctors offices still resonate with a feeling of "class".
Yet, as Stuart has pointed out, the lowly spray can of a quality satin black paint, provides both the technical and aesthetic function necessary for automotive use.
David
User of Rust-O-Leum satin black
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