Lbhl , K-+-E EEUFFEL & ESSER CO. Reproduced from the holdings of the Nationai Archives Pacific Southwest Region Adams and Third Streets, Hoboken, N.d. Telephone HOboken 3-1180, Teletype HOB 141, Date: REPORT February lst, 1950 _ON K. & E. TAPE NO. 7698CM - 50 Meters Nickel Steel Tape LOVAR (Trademark) Serial No. 6621 The above identified tape has been compared with our stand- ard (which corresponds to the U. S. Standar at the National Bureau of Standards at Washington, D. C.) and was found to have the following length at 20° Centigrade (68° F.) under the conditions stated below:- Supported on a horizontal flat surface:Tension li-1/4 Ke. Interval Length 0-50 M. 50.000 M. Supported at the §, 25 and 50 M. points:Tension Interval Length 15 Kg. 0-50 M. 50.000 M. The coefficient of expansion of the tape is assumed to be .0.000 000 4 per degree Centigrade (0.000 000 22 per degree Fahrenheit). KEUFFEL & ESSER CO. By awkef'p fB/ A. W. Keuffel Vice President . /o¥