Vintage, 1948, "The Metric System of Weights and Measures" by The National Council of Teachers of Mathematics: Twentieth Yearbook. Compiled the the committee of the metric system, J. T. Johnson Chairman Good to Very Good condition. Some discoloration of the pages due to age. Minor wear on the corners and the edges. Hand made dust cover. At least one page folded due to it being oversized during production This is a very interesting book on how we were or still are trying to convert the United States to the metric system. Published by: Bureau of Publications, Teachers College, Columbia University , New York, 1948 303 pages Approx: 9.5 x 6.25 x 1 inch Weight 1.6 pounds Hard back with hand made dust cover SKU AB-1-07-24-028