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