OS MASTER INDEX MEASUREMENT OF

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP70-00211R000800120063-0
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 1
• Document Creation Date: December 19, 2016
• Document Release Date: September 30, 2005
• Sequence Number: 63
• Publication Date: January 5, 1961
• Content Type: MEMO

Offict p d For Release 2 05/11/21: CIA-RDP70-00211R000800120063-0
en~oran ZL?n ? UNITED STATES GOVERNMENT
TO
Attn
FROM
Chief, Management Staff
? Room 604, 1016 16th St.
Acting Chief, Security Records Division
DATE: 5 January 1961
suBJECr: OS Master Index
Measurement of
1. Reference is made to our previous discussions regarding
the measurement of the Office of Security Master Index.
2. Following is an alphabetical breakdown reflecting the
number of inches currently being utilized for each letter. This
index is expanded by approximately 145, 000 cards a year:
Letter e No. of Inche s
Letter No. of Inches
~11
A - g
600 d,f N 02- 267 ? 41
B ~- 9
1025. r? 0 v/ 163 f J
C -8
891 7*
551 .r
D y
507 Y;,
,
Q 18 . 'Z,.
E - a-
223 /
R 55
7
F
443-37
S 7- /0 1179 ~ -7
G --
59 7
~
T Y 454 _ 9
H -6
700
?
.
U 71
I - ,ot
115
V -- ,a / 182 13-
J
226 1 9
W 575
K - S
649 4
X w..~ v
2
L -5-
5 8 8
Y 108
M - f
1012
Z 98.
7'??, . --
Approved For Release 2005/11/21 : CIA-RDP70-00211 R000800120063-0