Physics & Optics

A rectangular black slate art plaque on a small black display stand, featuring a horizontal color gradient from orange and yellow to green and dark gray, photographed against a clean white background.
Physics & Optics
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A rectangular black slate art plaque on a small black display stand, featuring a horizontal color gradient from orange and yellow to green and dark gray, photographed against a clean white background. A rectangular black stone slate art plaque on a black display stand, featuring a horizontal gradient design transitioning from orange and green at the top to solid black at the bottom, with fine gold lines.

Antique Spectrum Chart

Sale price$49.00