Public domain
SEAL OF THE UNITED STATES. STAMPING BONDS
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Subjects
Credit lineSEAL OF THE UNITED STATES. STAMPING BONDS. 1917-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.
Similar works
Checks railroad signal glasses for government. Washington, D.C., Sept. 29. Red should be read and orange should be orange and never should the colors in railroad signal glasses be so near alike as to confuse a trainman. The Government, through Mrs. Geraldine W. Haupt, Color Expert of the National Bu
Woman, Bureau of Standards
Interesting job with Uncle Sam. Washington, D.C., Oct. 13. One volt after another is all in the day's work for Mrs. L.H. Brickwedde, who is a battery expert for the National Bureau of Standards. Using a potentiometer - or in other words, a standard cell comparator - Miss Brickwedde is shown calibrat
![Color expert for Uncle Sam. Washington, D.C., June 20. When it was discovered that color plays an important [role] in marketing of cotton, Miss Dorothy Nickerson, Color Technologist of the U.S. Department of Agriculture, developed a method for measuring the color of raw cotton mechanically. The equi](https://thumbs.arkivism.com/loc-2016873729.jpg)
Color expert for Uncle Sam. Washington, D.C., June 20. When it was discovered that color plays an important [role] in marketing of cotton, Miss Dorothy Nickerson, Color Technologist of the U.S. Department of Agriculture, developed a method for measuring the color of raw cotton mechanically. The equi
NO CAPTION
Matilda Ziegler Magazine for Blind, Binding