Sykes Lock and Block instrument from about 1897. This particular example is not from India, but identical Sykes Lock and Block instruments were used quite widely in India. Photo copyright belongs to the Science and Society Picture Library, UK. Image No. 10289070, Inventory No.: 1951-0215 Photograph is re-used here by permission. (Gallery Administrator)

Date: 2011-11-23
Owner: Gallery Administrator
Full size: 367x500
Sykes Lock and Block instrument

Photo Properties
IPTC: Caption Sykes Lock-and-Block train signalling instrument, c 1897. IPTC: Copyright Notice Copyright Unknown photographer / Science & Society Picture Libr