National Museum of American History
Pyrometer
Brown, Edward
Patent model for Edward Brown, “Pyrometer,” U.S. Patent 130,894 (Aug. 27, 1872). The dial is 4-inches diameter, and graduated from 0 to 1500 by hundreds. The inscription reads "PYROMETER EDW. BROWN PHILADA."
🔒
Order museum-quality prints
Sign in to order prints, canvas, and more of this work. Browsing and full-resolution downloads stay free.