Daniell's pyrometer. Fig.2 . The registry Fig.3 The scale, vintage engraving.
Vector Illustration - Daniell's pyrometer. fig.2. the registry fig.3 the scale. the registry is a hard terracotta bar, white the scale is a porcelain sphere with glass tubing, vintage engraved illustration. trousset encyclopedia (1886 - 1891). EPS Clipart gg59235670
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