One Signal-to-Noise Pin. Analytical Chemistry Lecture Series.
Craft: Hard Enamel
Material: Iron, Gold Plating
Dimension: 2.8 x 2.8 cm
Attachment: 2 Rubber Clutches
Signal-to-Noise Badge Pin - Metallic Hard Enamel
Signal-to-Noise Pin. The material is hard enamel (gold plating) with two black rubber pinbacks.
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