c. 1960s Welch Demonstration Micrometer industrial The sign is dark blue

The sign is dark blue with a white font

14" H x 22" W

5" x 4" x 4"H

JM - 121922 - 105450

Please see the photos for detail

c. 1960s Welch Demonstration Micrometer industrial The sign is dark blueOversized classroom demonstration model of a micrometer. This piece was manufactured by W. M. Welch Scientific Co. in Chicago, who in addition to lab equipment, specialized in large scale models of scientific instruments for educational purposes. They were in operation from 1880 until 1968 when they were bought out by The E. H. Sargent Co. This piece is in good condition, but exhibits a few spots of fading and dents. 36" H x 13" D x 17" H MM 4342