I was watching a documentary today about the Library of Congress and they talked about how the library is digitizing their collection, so I took a look at the website and discovered this little gem from 1937. Post-prohibition, apparently our government experimented with different methods for ensuring that breweries paid the correct amount of taxes. The “beer meter” was one such device they came up with, shown below.

The caption below is cut off in the original in the library’s collection, which is why it ends mid-sentence.

And now a beer meter. Washington, D.C., May 1. To aid Uncle Same in collecting the tax on the millions of barrels of beer brewed in this country every year, the National Bureau of Standards has designed a master beer meter for use of the alcohol unit of the Bureau of Internal Revenue, U.S. Treasury. Government inspectors employ this master meter in checking the accuracy of the brewery beer meter to determine the volume of beer brewed. In the photograph the large tank receives the liquid [after passing] thru the meter where it is weighed to get [the] true volume. Carl F. Stoneburner is reading ….