Dewey Decimal System
Card index showing use of the Dewey Decimal Classification system, the most widely used library classification system, devised by Melvil Dewey in the 1870s
Picture No
13726269
Media ID
45389758
Size
4732px x 3473px
(1.5MB)
Credit
Mary Evans Picture Library
Source
Unattributed photograph. Image digitally colourised
Date
1947
