66/9 é™ K-+-E & ESSER CO, Adams and Third Streets. Hoboken, N. J. Telephone HOboken 3~1100 . Teletype HOB 1414 Date REPORT Febyuary ist,1950 _ON K. & E. TAPE NO. 7698CM - 50 Meters LOVAR (Trademark) Nickel Steel Tape Serial No. ° 6619 The above identified tape has been compared with our stand- ard (which corresponds to the U. S. Standards at the National Bureau of Standards at Washington, D.C.) as was found to have the following length at 200 Centigrade (68° F.) under the conditions stated below:=~ Supported on a hérizontal flat surface:~ Tension * Pacific Southwest Region Reproduced from the holdings of the National Archives KEUFFEL ll kg. . : Interval Length 0-50 Me 50.000 M. Supported at the 0, 25 and 50 M. points:~ Tension 15 Ke. . Interval Length Om5O 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 awk-fp (/s/ As We Keuffel Vice President (03